Ideal extreme powders? Altitude: 0 Feet with a Standard Atmospheric Model. H1000 ran out of space for powder before I reached max velocity. I also received some information from a gentleman in Canada who built a 7PRC. This load has been optimized in Shoot! If you throw a big rock, it puts a big hole in the ground, but doesn't go so far. The one disagreement I have is that I think the 7PRC will affect the 28 Nosler sales more than they will the 7RM or 280AI. This load has been optimized in Shoot! In general, a bullets maximum effective range is the distance at which it no longer travels fast enough to reliably expand when it hits a target. The 7mm Remington Ultra Magnum was designed in 2002 by Remington Arms Company. Depending on bullet type and construction, the minimum expansion velocity for rifles falls between about 1300 and 2000 fps. Well done mate , wont 7wsm do the same?? Figure 3. If you throw a big rock, it puts a big hole in the ground, but doesn't go so far. rating at 4,200 fps, it would miss. Do you plan to hit every animal with a rangefinder? As we examine the drop and deflection of a bullet it becomes apparent that BC and velocity are very important parameters for shooting at long range. As soon as the cartridge was officially announced, Hornady announced many rifle makers that will be producing factory offerings for the 7 PRC. You may be able to use a heavier bullet and achieve more energy or a longer range with more velocity.if(typeof ez_ad_units != 'undefined'){ez_ad_units.push([[300,250],'backfire_tv-box-4','ezslot_6',175,'0','0'])};__ez_fad_position('div-gpt-ad-backfire_tv-box-4-0'); Since were talking about max distances, Id like to clarify something here. And shoot 168 Barnes tipped triple shock bullets along with Berger VLD at same weight and load. The bullets BC (ballistic coefficient) is very high at 0.536. If you own a 7mm Rem Mag, its easy to produce 7mm Rem Mag Ballistics reports using Shoot! Though it is designed to headspace off the belt of brass, handloaders can improve concentricity by using the shoulder for headspacing. 1998 - Present. My scope has seen better days but my Weatherby Accumark is like new and I really like it. I use a Griffin ultra-light 30 cal suppressor and in all of my rifles I average around a 60 FPS velosity gain over a brake. Last, I shot Accurate Magpro powder with the same 175gr ELD-X and CCI large magnum primer out of a 24 test barrel. Interestingly, I loaded 61.2 grains of H4831SC in a 7mm Remington Magnum, and a 7mm PRC. You did not compare this cartridge to the 7mm RUM? Hornady officially announced the cartridge on October 26, 2022 at the NASGW Expo. Do not rely on my anecdotal testing for your rifle. A good laser rangefinder is a tool, and if it isn't used properly it won't yield good results. We need more ethical hunters who wont chance wounding an animal. I am currently building a 7 prc on my .338 win mag action and a Lilja 1:9 twist stainless barrel. Couple questions for you. https://bobp.cip-bobp.org/uploads/tdcc/tab-i/tabical-en-page36.pdf. We develop the ideal load for your rifle that is tailored specific to your requirements, hunting or target. Jim, Unlike a load data book from one of the ammunition companies, I am not measuring pressure with a computer. Building a rifle with no reloading data and no established manufacturing was a challenge, but now you can easily get a rifle rebarreled for 7 PRC. Any recommendations Freedom is not free. 7mm Ballistics Examined For this ballistics demonstration we are using Norma 150gr Scirocco with a muzzle velocity of 3117fps and a ballistic coefficient of 0.536. Use a small level, and look closely at new rangefinders that incorporate incline shooting compensation. It produces 1,500 ft-lbs of energy for elk-sized game out to 510 yards, and 1,000 ft-lbs for deer-sized game to 810 yards. Personally, my load for the 175 ELD-X in the 7mm PRC will be 64gr of H4831SC, which should yield around 2,925fps. Eliminating the effect of wind by using high BC's and proper compensation techniques is the only solution. Using dies from Whidden, I got to work. ShootersCalculator.com is in the process of being massively overhauled. Ballistic Profile Specifications: Scope height, velocity, twist rate, and all ballistic data to include bullet Ballistic Coefficient (BC), powder charge, Base to Ogive, and Cartridge Overall Length will be provided with the package. Because of the nature of the bullet's shape and its performance through the air, changing Air Densities can have a large effect at long range. 7 PRC is designed for shorter barrels. I keep watching to see everyones long term thoughts and hunting performance. Minimum sucks. Guessing and sighter shots have no place in todays hunting ethic. The aim ballistically for Hornady with the 7mm PRC, is for a cartridge that will fire a 180gr 7mm bullet at around 2950 to 3000fps. The list goes on. I'd throw a link in, but i don't know how from an iPhone. 7 PRC looks like the best large deer caliber. Jim Harmer is a host of the Backfire Youtube channel. They gave me a 22 inch 7MM barrel blank so thats what I used for my 7 PRC build. Rifle Type Both the 7mm Rem Mag and the .300 Win Mag are only chambered in standard/long action rifles. If you aimed a barrel perfectly in line with a target 100 yards away with the world's highest B.C. I just finished my 7saummight need to do an identical build but in 7prc and compare. Those are definitely numbers that need to be accounted for, but most sophisticated methods for long range shooting handle these changes easily. Would also mention- at THAT range, your ability to "read the wind" becomes critical. I currently shoot a 300 Win Mag. The Barnes bullet loses velocity at twice the rate of the VLD! I enjoy your videos. I watch all your videos. This can be useful in comparing cartridges or loads. A bullet traveling through the air will lose velocity, and the bullet's shape effects how fast it will slow down. If it performs like my 6.5 PRC and 300 PRC, Im guessing it will be a winner too. For what its worth longest shot was 823 yards with my Leupold vx2 3-9 but that was eight years ago Agreed that Whidden Gunworks makes the best reloading dies available. I think too many hunters see muzzle velocity and assume if its fast, itll work long range, and thats not true at all. 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. At 1000 yards the rotation of the earth is basically moving your target down 2.6 inches per second if you are pointing east, and up if you are pointing west. Thats why knowledge of 7mm Rem Mag Ballistics is so important. The ballistic data below was calculated with a Hornady 180gr ELD-Match 7mm bullet fired at . 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. Loaded with IMR 4830 @ 70 gr. I reload and would be VERY interested in learning more about being able to use less powder to achieve higher velocities with the the same bullet in 7 PRC vs 7 rem mag. Thanks again! Up and down winds can be tough to deal with because of difficulty in reading mirage, or the terrain can be hidden. Im not sure that muzzle velocity would have helped this discussion, though. It's like these other guys said, if you throw a small rock it goes really fast, but not very far. At 500 yards the 7mm's ballistic advantage begins to matter with nearly 10 inches less drop than the .270, 6 inches less than the .300. As a competition gun and a capable do all cartridge the 7 PRC absolutely checks just about every box there is I look forward to adding it to my 7mm-08 (for 120-150gr bullets) and 280AI (for 140-175gr bullets) as a capable 7mm magnum that isnt tremendously overbore and specialized for heavier (160gr+ bullets). If you do not have a Shooting Chronograph, I strongly suggest you purchase one. Ive been playing around with Berger 190g Long Range Hybrid Targets. Nice informative article. So, you definitely need a long-range bullet for most longer shots. Unfortunately, no. Check out bestofthewest.com or longrangepursuit.com. Thanks again for the info. 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. If you cant your rifle the same every time, you won't have a problem, but if you change your cant by tipping your scope just five degrees to the right, your point of impact in the standard system would be 16 inches right! 7mm Rem. These are Altitude (basically, Pressure), and Air Temperature. For instance 180 grain bullet out of a .30-06 will have a range of numbers even if the MV is the same, as you can have bullets like VLD, spitzer/hollow point boat tail, flat base, and round nose bullets all found in factory loads. 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. Leave nothing to chance, because great things dont happen on accident. I do reload and my rifle seams to like 70 grains. Thank you. The Bigger Question is, whats YOUR maximum? Should be the next level do it all cartridge. But these eyes have seen better days (literally). Shooters will gravitate toward heavy-for-caliber high-BC bullets in the 7mm PRC. Pinsoft Software. lb Muzzle Velocity ft/sec. is beginning to assert its trajectory superiority here with a 5-inch advantage over the .270 Win. The Fora platform includes forum software by XenForo. Heres what he reported using a 175gr ELDX, Federal 215M primers, and Reloder26 powder. "Gun control: The theory that a woman found dead in an alley, raped and strangled with her panty hose, is somehow morally superior to a woman explaining to police how her attacker got that fatal bullet wound." This is more energy than some other centerfire cartridges at the muzzle! Id love to see what data you get so I can include more data in this post. But, you dont want to get too close to that minimum expansion velocity. Seldom is the practical max the same as the true max distance. 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