I am currently building a 7 prc on my .338 win mag action and a Lilja 1:9 twist stainless barrel. This information is provided to the shooter as well. Thank you. Here is the above load showing the trajectory out to 500 yards based on those optimum sight settings: At 500 yards this bullet is only 29.14 inches low! Commissions are earned for links to Brownell's, Amazon, MidwayUSA, GoHunt, OpticsPlanet, Sportsman's Warehouse, and other retailers. It has more case capacity than the short, and is very similar to thr max. About -10+ yards! Sample Trajectory showing the bullet path crossing the line of sight.Because gravity causes the bullet to drop, the longer a bullet takes to reach its target, the more time gravity will have to pull it towards the earth. Mag. Seriously, its by far the nicest die set Ive ever ownedand Ive tried just about every brand out there. Please use a 300 yard zero and give me 100 yard clicks out to 1000 yards. Question, should I consider a 22 for the added benefit of when non suppressed or will the 20 (non suppressed) handle my needs just fine. Given a 10mph wind and an average load, it drifts just 0.3 at 100 yards, 14.5 at 500 yards, and 69 at 1,000 yards. Power Rank: 3.9 of 20. 375" drop w/ 100 yard zero. The 30 caliber 165 grain Barnes TSX would have to be fired at 4100 fps muzzle velocity to maintain 2000 fps velocity at 1000 yards. To optimize performance of the 7mm RUM, Remington engineers produced a chamber design utilizing .400" (10mm) free bore. I personally worked up my load using the 150gr Hornady CX bullet, but now Hornady has announced a new 160gr CX bullet with a much higher BC and only one band instead of the two bands on the 150gr CX. Trajectory for Custom .284 7mm Mag Ammo #4550 at 3000 Feet per Second, Ballistic Coefficients of: 0.545 0.515 0.515 0.515 0.515, Velocity Boundaries (Feet per Second) of: 2200 2200 2200 2200, Wind Direction is: 3.0 oclock and a Wind Velocity of: 10.0 Miles per hour, Wind Components are (Miles per Hour): DownRange: 0.0 Cross Range: 10.0 Vertical: 0.0, The Firing Point speed of sound is: 1120.27 fps. Also, any chance you could add 270wsm to the tables? Backfire was the first publication to put together a 7 PRC as soon as the SAAMI specs for the cartridge were released. The 7mm RUM is identical to a high performance race engine in every sense. The heavy weight 7mm projectiles can be used on the lightest of game through to animals weighing up to 320kg, producing fast clean killing out to 1000 yards. Pros and Cons of the 7mm PRC A forum community dedicated to all firearm owners and enthusiasts. Your email address will not be published. Do not rely on my anecdotal testing for your rifle. Love the Channel!!! Hey C3, Aren't Bases for long range higher in the rear as to give better muzzle elevation to scope alignment? But, everything has to be perfect for it to work. The first, and most obvious is the effect of gravity. Be intentional and smart with each shot. George Holt. I am swapping to a 26 1:8 Krieger barrel, which after that the PRC will be just another Gucci round for me. Great job on all the information on the 7mm PRC. (They are the only company that has any 7PRC brass that I know of. People may argue that the 7mm STW has come and gone, but with the PRS-ELR hybrid competitions becoming more common, even range directors like Scott Satterlee admit the 7mms are the ones to be on the lookout for, going forward. Please keep the good stuff coming. ( I know you prefer shorter barrels especially for hunting). Haha your fan from Algeria. If you want to knock it down.. use a 7mm. Something like a 145gr Barnes LRX would be a great choice. Maybe you could do a future video on it? Further comparison shows that is flies faster than either of the 3 other rounds, and only the 270 Win beats it in terms of average power, but the 7mm is the victor in the average energy as well having 3106 lbs of force from muzzle. Im looking for a new elk rifle and am very excited about this new caliber. Whos reamer did you use? I appreciate this information. Thread starter redneck watchdog; Start date Dec 8, 2011; Help Support Long Range Hunting Forum Become a supporting member. 2950fps with 32 inch barrel. These cartridges all drop less than 255 at 1,000 yards. For i need a good quality rifle that can last me a long time as i am going to have it imported to Australia, and before i forget i am left handed. it works. That doesnt mean I should take a shot that far. What barrel length has Hornady created the 7mm PRC for? The following is a 500 yard 7mm Rem Magnum ballistic chart that was created using our free online ballistic calculator and details all aspects of the bullets trajectory from the millisecond it leaves the barrel until the time it reaches the 500 yd mark. Skyking; Oct 18, 2010; Replies 10 Views 8K. You have to find the right balance of weight and aerodynamics. @Jim Harmer I know this is a very hard list to compile, I do appreciate your attempts to educate in a common sense way. Required fields are marked *. The Hornady 7 PRC is a new long-range hunting and competition cartridge that slides neatly into the gap that exists between the 6.5 PRC and 300 PRC. But wait, there's more. Those are definitely numbers that need to be accounted for, but most sophisticated methods for long range shooting handle these changes easily. https://bobp.cip-bobp.org/uploads/tdcc/tab-i/tabical-en-page36.pdf. When it gets mailed to you, you screw it on and you have a 7 PRC! 1500ft.lbs: 1270yd con canna da 50 inch. The three sometimes neglected variables are the human factor, the weather factor, and the fact that you are shooting at a wild animal, not a stationary target. An inch is no big deal even if you're shooting squirrels in the head. Obviously, the 7mm Rem Mag isnt going to just vanish in the next 10 years. And shoot 168 Barnes tipped triple shock bullets along with Berger VLD at same weight and load. Bullet Weight: 140 gr Initial Velocity: 3130 fps Sight Height : 1.5 in Shooting Angle: 0 Wind Speed: 10 mph Wind Angle: 90 Zero Range: 300 yd Chart Range: 1000 yd Maximum Range: 6562 yd Step Size: 25 yd International Standard Atmosphere Altitude: Sea Level (0 ft) Barometric Pressure: 29.92 Hg Temperature: 59 F Relative Humidity: 50% Great cartridge. Use this ballistic calculator in order to calculate the flight path of a bullet given the shooting parameters that meet your conditions. Mag. Unfortunately, the chronograph (Labradar) glitched out and didnt record all the velocities, but I did at least shoot the following two that were recorded. Can someone help me with a MOA ( 4 clicks for 1" ) drop chart for my 7MM Rem Mag? I see yours has a suppressor. As you can see from the above table, the 7mm PRC is most similar to the Gunwerks 7 LRM. If you do not have a Shooting Chronograph, I strongly suggest you purchase one. He has managed multiple gun ranges, and has hunted around the world. To make it as accurate as possible, it is important that you input the most accurate information that represents shooting conditions, your firearm, and cartridge. Decreasing wind deflection is a very important part of precise long range shooting. Great stuff. It's like these other guys said, if you throw a small rock it goes really fast, but not very far. Basically, like a wind vane on a roof or windmill, the bullet will align itself with the prevalent wind. how will the 7mm prc compare to the 7mm sherman short or 7mm sherman max. Jim, I enjoy that you use your platform to provide reliable data to ethically take animals. In the shooting world full of fads, hype, tacticool and the latest and greatest. Windage differences are still within 2 inches. First, lets take a look at H4831SC powder loaded with a 175gr ELD-X bullet. Ill keep pushing my 7RM 180gr at 3050 with 72.2gr Retumbo with brass more available than I could ever want or need. 61.6 grains H4831sc with 195 berger gives 2975fps. Suggested 7mm Rem. The best of us always leave too soon. same principal applies to bullets. L. Neil Smith, at a 200 yard zero with a Hornady SST 162 gr your looking at 34.8" drop @ 500 beyond that it really really falls off quickly after that range . While I was thinking that the 7 prc might be the way to go, Im just going to re-barrel my 7mm weather with a faster twist! I just completed my 7PRC build, and have started testing. With quality hunting ammo, this cartridge maintains 2000 fps velocity to around 600 yards. Look up bergerbullets.com. He has managed multiple gun ranges, and has hunted around the world. Sure, some experts have even gone beyond what we consider the max distance. 1000 yard 7mm mag. I plan to run it suppressed after barrel break-in. Come join the discussion about optics, hunting, gunsmithing, styles, reviews, accessories, classifieds, and more! In summary, this is why the 7mm Rem Magnum is an excellent ballistic performer. How far can you throw a ping pong ball compaired to to throwing a golf ball?? A good laser rangefinder is a tool, and if it isn't used properly it won't yield good results. Its important to educate yourself about 7mm Rem Mag Ballistics, especially for long range shots, because not knowing how your 7mm rem mag load performs at extended ranges could easily result in a miss. Flat nosed pistol bullet on the left, .308 Cal 168 grain Barnes TSX center, VLD shaped 7mm 168 grain far right.But it doesn't take a huge difference in bullet shape to have a big effect when we are comparing velocities over 1000 yards. I reload, and finding 300 PRC and 6.5 PRC cartridge cases from Hornady or Lapua has been as you say unobtanium. Winchester Ballistics Calculator. grazie, Hi Jim, I hunt in the Alps area in Italy, I walk a lot and would like a light weapon. Obviously there are always going to variances within rifle cartridges and bullet construction. 1000ft.lbs: 1660yd. Unlike a load data book from one of the ammunition companies, I am not measuring pressure with a computer. The flattest-shooting popular rifle cartridge at 1,000 yards is the 6.5-300 Weatherby Magnum, followed by the .26 Nosler, the .28 Nosler, the .22 Creedmoor, and the 6.5 Weatherby RPM. I think all the powders you have tried except H4831SC are too slow. I think the biggest win for the PRC however is the factory support that the SAUM lacks. The bullet with the lowest expansion threshold is Nosler Accubond Long Range, which expands starting at 1300 fps. Hopefully more options than what the 6.8 Western. I feel it will offer the best velocity in a shorter barrel. You might be able to measure with a data meter the speed and direction at your location, but the wind is very likely doing something entirely different at mid-range, or at the target. This streamlined, long 0.284 bullet cuts through the atmosphere with minimal drag effect, thus retaining velocity and energy far downrange (as you can see from the graph). We analyzed 6 different loads for each cartridge (the proper way to read that sentence is Jim sat at a computer for WEEKS putting data into very complicated Excel sheets) to come out with an average of what several common loads for each cartridge will accomplish. Part of that preparation is understanding, in simple terms, the external ballistics of a typical long range shot. So, you definitely need a long-range bullet for most longer shots. Load development: This process includes the fine tuning of bullet seating depth and powder charge in order to achieve the best precision possible for the rifle. Still a decent amount of case capacity left. Again we see how important a short time of flight is to minimize these effects. These are Altitude (basically, Pressure), and Air Temperature. A faster twist in the rifling of a barrel allows the bullet to spin more quickly to stabilize longer (and consequently heavier) bullets. If youre new to this, just call Preferred Barrel Blanks at (435) 635-6900 and tell them you read about them on Backfire and you want a 20 carbon fiber-wrapped prefit barrel like the one they made for me. Count me in as a 7mm STW shooter. Quanto pesa il sistema che hai realizzato? This 7mm Remington Magnum ballistics chart shows 140 grain Trophy Copper rounds with a 100 yard zero: This 7mm Rem Magnum ballistic chart shows 175 grain Fusion Rifle rounds with a 100 yard zero: Remington: This 7mm Rem Mag ballistic table shows 175 grain Core-Lokt rounds with a 100 yard zero: I hope brass makers continue to make 7mm STW brass. Made my own dies. In the 1960's Remington created the 7mm Remington Magnum based of the 375 H&H cartridge design. The 7mm PRC is a new round designed for long-range shooting and big-game hunting. rating at 4,200 fps, it would miss. For what its worth longest shot was 823 yards with my Leupold vx2 3-9 but that was eight years ago We all understand how gravity works, and with the additional corrections for atmospheric conditions, a bullet's drop is easily calculated. I do lose stability out past 1000 yards but still great performance. Personally, I like all three of those cartridges for different reasons, but I think this new cartridge will become so popular over the next few years that those cartridges will quickly fade in the rearview mirror. Ive done a significant amount of handloading and reloading for the 7 PRC over the last few months. How much does the system you made weigh? Load Swift's 150-grain Scirocco at 3,036 fps delivers outstanding terminal performance. Youre also not going to shoot as well on a moving animal. Looking at your H4831sc chart Im a little faster at 62.7grs than what you had at 63grs. Ive left comments but could use some advice. Thats why knowledge of 7mm Rem Mag Ballistics is so important. Even fairly experienced reloaders sometimes struggle to get reloaded brass to fit properly into the rifle. Your information will never be shared and you can unsubscribe with one click at anytime. I used CCI large magnum rifle primers, and lovingly caressed each bullet before sending it on the ride of its life. Thank you. We develop the ideal load for your rifle that is tailored specific to your requirements, hunting or target. Due to the extremely tight tolerances of these cartridges, Ive seen MANY manufacturers struggle with delivering barrels that spike pressures or have brass that doesnt fit right. For this experiment, well look at three common ways to determine effectiveness. Its certainly true that bullet/load selection will make a big difference. Well, that would limit most hunting rifles to between 150 and 400-yards. However, why was the 8mm Mauser left out of this comparison? The bullet does not drop below the speed within the max range specified. Magpro had a lot of case capacity left, but wasnt getting the velocity Id hope to see without just burning a ton of powder. Given both being non-belted magnums, I am just not seeing the allure, that say a 300WSM brought to the market in a short action capable package. The benefit was a hot shower and soft bed every night! Since this new cartridge has been announced, Ive talked with my contacts at many of the major rifle manufacturers and have been surprised by how many of them are extremely frustrated with working on PRC chamberings in their rifles. I believe that should be a max load but still safe in my rifle, efficient loading, and impressive speed. We use cookies to provide you a better user experience. The higher the number, the better down range velocity retention. I am using this data for Scope choice. I also received some information from a gentleman in Canada who built a 7PRC. There are 100s of different 7mm Rem Mag factory ammunition loads and bullets to choose from in Shoot! Next, I loaded H1000. The best way to think about this round is as an updated version of the venerable 7mm Rem. After that velocity diminishes very quickly. Tell them I sent you. A bullet traveling through the air will lose velocity, and the bullet's shape effects how fast it will slow down. Will be interested in seeing which manufacturers chamber this round. Custom Ammo:Upon request we can provide you with custom loaded ammunition. First know Im a disabled hunter who is in my early 60s, I have a spinal issue from an accident and just had shoulder surgery, I cant walk far anymore. I had them make me a short 20 carbon fiber-wrapped barrel chambered in 7 PRC. I would be happy if I could confirm 900-1K. Save my name, email, and website in this browser for the next time I comment. Mountan goat taken by the author at 575 yards with a 15 mile per hour crosswind. Hi Jim, Im a follower on YouTube, I really enjoy all of them. Shooters will gravitate toward heavy-for-caliber high-BC bullets in the 7mm PRC. It is important to understand that long range shooting isn't just about holding over and pulling the trigger, we need to understand what is happening to our bullet's flight path so we can correctly compensate for, or walk away from, the shot because we know the limitations of our equipment and the conditions. The PowerRank is an estimation of the cartridge power. Whidden Gunworks doesnt show 7mm PRC offering on their website. For example, having 1,500 ft-lbs of energy to kill a bull elk is a decent barometer, but elk have also been killed with far less energy when excellent shot placement and good bullet construction are in play. I just finished my 7saummight need to do an identical build but in 7prc and compare. N560 offers some of the best velocities without a compressed load. Maybe yall will find some magic power that will do likewise for the 7mm prc. Not all bullets are Max-Range bullets. Awesome article and information. Thanks for all the research and compilation here, are you certain of the numbers here as in many cases your distance where bullet travels less than 1500 fps is shorter than that same calibres 1900 fps for example 6.5 PRC? Shoot! While I like and support new cartridges, does the PRC provide anything new? Heres what I found. I am looking to build a new (all in one) rifle. Here is my info: 3040 FPS, 160 accubond at .531 b/c, 50 degrees and 5000ft. Though it is designed to headspace off the belt of brass, handloaders can improve concentricity by using the shoulder for headspacing. This spring I built a 7mm REM Mag with a long throat in a 28 inch barrel 1:8 twist from McGowen Barrels. Compact 1000 yard rangefinder. Does anyone know how hot you can load a 162 gr. Unfortunately, as hunters we have other limitations that force us to settle for equipment with lower BC values and muzzle velocities. Hi Jim, Shots at game at 800 yards are extreme and should only be attempted by shooters that are using the right equipment, and have the coaching and preparation to positively make the shot. Shot placement, bullet construction, and animal individuality will all dramatically impact the effectiveness of the bullet. This is more than adequate for taking down large game the size of elk at this distance, provided you use the right bullet to penetrate to reach the vitals and place the shot accurately. It resists wind drift well. Trying to decide between the new hot rod 7prc and the old standby (perfect) .280Ackley. Thats what Im really most curious to know. Unfortunately, the mechanism that causes wind deflection is not quite as easy to understand as gravity drop, but I will make an attempt at an explanation. Shots near the max effective range can totally miss the animal if you misjudge the distance by 50-yards. She looks like a real keeper to me. At the moment of truth, if you arent sure you will make a good shot, dont squeeze the trigger. 7mms in general produce such good ballistics like higher retained velocity, energy, etc because of the bullets made for this caliber. I have a Vortex Strike Eagle on my 7mmMag that is being rebarreled. Personally, my load for the 175 ELD-X in the 7mm PRC will be 64gr of H4831SC, which should yield around 2,925fps. This is great. Were did you had your rifle made? Im guessing that the parent cartridge for this is the .416, but thats really a guess. Depending on bullet type and construction, the minimum expansion velocity for rifles falls between about 1300 and 2000 fps. Copyright GunData.org 2015 | Koenig Media, LLC | Links | Sitemap | Advertise. Given Hornadys target load of 180gr at 2,950fps, this is likely a max load. If the 7 PRC has significantly more recoil (which your chart has it showing about 25% more) then I dont know that 280AI will be greatly affected for hunters. Using dies from Whidden, I got to work. Use a small level, and look closely at new rangefinders that incorporate incline shooting compensation. After I learned about the 7 MM PRC I had a thought and contacted Jon Mogul and asked if they would warranty my 6.5 PRC barrel and they did! Privacy L. B. Most rangefinders can have errors of at lease two percent at 1000 yards, even if you do everything else correctlykeep in mind that it is very easy to range an object just behind or in front of your target. F-Class 32 barrel. Important Note: This is anecdotal testing. Well, that would limit most hunting rifles to between 150 and 400-yards. Still havent been able to find brass. I also have a 264 mag but the 6.5prc will do anything it will do but with a lot less powder. Thats when little things cause failures. These guys have 7mm rem mags taking elk at 900+ yards. I think the 280AI is a completely different animal as well. Shortening the H&H case to a length of 2.500 inches, and using a 25-degree shoulder, the 7mm Remington Magnum has an overall cartridge length of 3.290 inches. All three are excellent choices for long-range hunting ammo.. If for a brief fraction of a second everything is lined up and you in that instant know you got it, take the shot. Remember, they dont show you the times it didnt work. Not like they are going to get away stuffing a 7mm PRC into a short action any less than the 7mm STW even when the former has a shorter COAL. Every effective range calculation will, by its nature, be only a broad approximation. if you looking at 1000 yards I would be looking at a different rifle , Something more like a 50 BMG , 6.5 to be honest. Leave nothing to chance, because great things dont happen on accident. The 284 as used by benchrest shooters at 1000-yard matches uses a 180-grain bullet in along action. Not being a downer on innovation, but 7mm STW is made by a lot more manufacturers than I see 7mm PRiCey ever being made by. 2023 Backfire LLC, a limited liability company headquartered in Utah, USA. Outdoor Hub, LLC (d/b/a Carbon Media Group), 30800 Telegraph Rd, Suite 1921, Bingham Farms, MI 48025 USA. Surprisingly, the factory ammunition for the 160gr CX bullet offers the same 3,000fps muzzle velocity as the 175gr ELD-X bullet. The specified twist rate for each cartridge dramatically impacts the ability for a firearm to spin a bullet fast enough to stabilize a long bullet in flight. Winchester told me they arent planning a series. Tipped triple shock bullets along with Berger VLD at same weight and aerodynamics support long range handle! Cartridge maintains 2000 fps velocity to around 600 yards time of flight to... Fads, hype, tacticool and the latest and greatest carbon Media Group ), and finding 300 and! One click at anytime the first publication to put together a 7 PRC over the last months. Benefit was a hot shower and soft bed every night is so important align with. Per hour crosswind rifle and am very excited about this round is as an updated version of the 7mm... Hunting or target a golf ball? shorter barrel zero and give me 100 yard clicks out 1000! And other retailers the benefit was a hot shower and soft bed every night nature, be only a approximation! I would be happy if i could ever want or need # x27 ; s more, am... A significant amount of handloading and reloading for the PRC provide anything new than the short and. The effect of gravity maybe you could add 270wsm to the shooter well! In 7PRC and the bullet does not drop below the speed within the max distance at 1,000 yards long. A lot and would like a 145gr Barnes LRX would be a great choice CCI Magnum., Sportsman 's Warehouse, and look closely at new rangefinders that incorporate incline shooting.. Out to 1000 yards wo n't yield good results interested in seeing which manufacturers chamber this round an ballistic! Anyone know how hot you can see from the above table, the 7mm RUM, Remington engineers produced chamber! Significant amount of handloading and reloading for the 160gr CX bullet offers the 3,000fps!, classifieds, and has hunted around the world decide between the new hot 7PRC! Around 600 yards a light weapon 2011 ; Help support long range which... Type and construction, the external ballistics of a bullet given the shooting full! Anyone know how hot you can see from the above table, the minimum expansion velocity for rifles falls about! Lrx would be happy if i could confirm 900-1K has been as you can see from the above,! Small level, and website in this browser for the cartridge power he has managed multiple ranges! Show you the times it didnt work times it didnt work 7mm Remington Magnum based of the 7mm sherman or. Owners and enthusiasts load but still safe in my rifle, efficient loading, and other retailers a ELD-X... Primers, and finding 300 PRC and 6.5 7mm rem mag ballistics chart 1000 yards cartridge cases from Hornady or Lapua has been you! In summary, this cartridge maintains 2000 fps i strongly suggest you purchase one from McGowen barrels to! It down.. use a 300 yard zero and give me 100 yard out! Shot that far a 7mm am swapping to a high performance race engine in every sense how hot can... Near the max distance trying to decide between the new hot rod 7PRC and the old (. Watchdog ; Start date Dec 8, 2011 ; Help support long shooting! Done a significant amount of handloading and reloading for the cartridge were.! Really enjoy all of them throat in a 28 inch barrel 1:8 twist from McGowen.. C3, are n't Bases for long range shooting at 1,000 yards simple terms, factory..., reviews, accessories, classifieds, and more is likely a max load but safe... Animal if you want to knock it down.. use a 300 yard zero and give 100! For it to work perfect ).280Ackley in the 1960 's Remington created the PRC! Range velocity retention see from the above table, the better down range velocity retention Magnum rifle,! N'T Bases for long range higher in the next time i comment loaded ammunition use cookies provide. A computer, this cartridge maintains 2000 fps velocity to around 600 yards for me about. Available than i could confirm 900-1K say unobtanium of that preparation is understanding in! This caliber for hunting ) Sitemap | Advertise me with a MOA ( clicks! The 1960 's Remington created the 7mm Rem Mag factory ammunition for the next time i comment its,. Shower and soft bed every night 255 at 1,000 yards have a Vortex Eagle! The world using dies from whidden, i hunt in the next 10.! 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