The higher the BC number, the more aerodynamic and better performing the projectile will be. As said before, I come from a different world. He is going to turn the chamber and barrel ,out of a blank , into a Weatherby 6.5-300 Weatherby mag. Overall Practicality: For the experienced Long Range hunter, I think this is a great caliber to consider. Average MV for a .223 is 3100 fps. He served as team leader for a scout sniper team during the 22nd MEU. This caliber is great for experienced PRS shooters, or big game, Long Range hunters. That one-millimeter difference means a large increase in MV. Hunters have debated the best rifle calibers for hunting over crackling campfires for decades. 1,500m: 264 ft-lbs. The history and service-record behind the .308 goes all the way back to the 1950s. The 6.5 PRC was born at the 2018 SHOT Show. Many. All I can say about that quarter cartridge is…wow, obscure, but deadly, and waaay easier on my shoulder and ears than the .300. A BC number can be represented in several different G values or standards. This caliber is great for experienced PRS shooters, or big game, Long Range hunters. Recoil Condition: With a muzzle brake and/or suppressor, the .300WM can feel similar to a .308 Winchester. The .260 isn’t too informationally unavailable to offer a great learning caliber to the average new shooter. Not many production rifles exist in a budget option. Ammo Availability: Several factory loads do exist on the market today. Do you intend to run the same caliber across bolt and semi systems? Overall Practicality: For the Long Range hunting community, I would argue that the .30-06 still has a place in this world. With help from the civilian market led by Winchester, the .308 took the world by storm. The AXIS II Precision weighs just under 10 pounds and is available in .222, .243, .270, .308, 6.5 Creedmoor, and even the … Cross-Platform Use: We all know that AR-10’s of the past could never keep up in accuracy with a bolt gun. 1. Since this caliber is somewhat antiquated, the modern tactical platforms have not maintained product lines for the .243. Other than that, the projectiles will always be available. Is it the most accurate? BUT, just keep in mind that sticking to one caliber, and being able to use that caliber in multiple systems does have advantages. Are you operating a bolt or gas gun? Ammo Availability: Because this cartridge is so new, ammo prices are going to be high. LR performance is very impressive. It is a product of natural selection and evolution…the best features of several classic LR rounds fused into one. Admittedly more so than the newer cartridge contenders, the 300WM will always pass “The Two Dot Test” for ammo availability but, it suffers from 1963 ballistic and bullet technology…..short head dimension (ie. .308 Winchester (#2), 30-06 Springfield (#3), 7mm Remington Magnum (#5) .270 Winchester (#6):These four workhorse, all-around cartridges are as much as a hunter needs for taking Class 2 and Class 3 game anywhere in the world. Muzzle Velocity: A standard projectile weight for optimum performance out of the 6CM would be a 105 grain Berger Target VLD @ 3,100fps. The market has followed. Average barrel life will be 1,500-2,000 rounds. Basically, whatever. Now getting up into the .30 cal plus magnum rounds, the recoil will noticeably greater than the .308 Winchester. You get excellent Long Range performance, with recoil slightly less than the .308 Winchester. Barrel Life: Average barrel life is around 5,000 rounds. Other than that, the projectiles will always be available. If I was building a rifle on this caliber, I would expect to look at bolt-only options. Great article ….. So how does this relate to selecting the best Long Range caliber? The old venerable warrior 300WM had to make this list due to ammo availability and cost and favorite son status. 1,500m: 264 ft-lbs. History: The 6.5 Grendel comes to us in 2003 from Alexander Arms. But advancements in projectile technology coupled with the .223/5.56’s extremely low-recoil characteristics have vaulted it to dominance. This cartridge chambered three iconic US Service weapons; the 1903 Springfield rifle, M1 Garand, and the Browning Automatic Rifle (BAR). I’ll shoot anything. For someone considering PRS matches, this rifle is not for you. Remaining Energy: Muzzle: 4,029 ft-lbs. Recoil Condition: A line can be drawn in the sand between the .30 cal class projectiles and the .338 and larger. 5. Taking the original .300 Ruger Compact Magnum and necking down to accept the 6.5CM projectiles, Hornady could fire the same projectiles as the 6.5CM but with 250 fps added MV. Best-Selling Guns of June 2020 Semi-Auto Handguns: Glock 19. Remaining Energy: Muzzle: 5,096 ft-lbs. No. If you had the money to spend on it, and were not needing a semi-auto rifle for competitions, the .300 Norma Magnum is possibly the best performing round on this list. We are cutting the grooves with beveled 5R rifling to further increase accuracy and longevity of the barrel due to the “barrel and chamber burning” of… Read more ». This cartridge was designed to deliver devastating .30 cal Magnum performance. A 6.5 PRC build certainly will not be cheap, so if you are a beginner or limited on budget, this is not the caliber for you. Books. Recoil Condition: Minimal. You cannot pick a better round for the beginner Long Range shooter. For all around optimal performance, the projectile weight needs to be in the 140gr+ range. Barrel Life: Sadly, a .300 NM barrel will only live to 1,200-1,500 rounds. This cartridge calls for a custom case. 6.5CM cases will fit an AR-10 magazine. Although the two cartridges have very small differences, SAAMI (Sporting Arms and Ammunitions Manufacturers Institute) maintains it is safe to interchange the two rounds. All in all, proven through years of ballistic testing, the 6.5 Creedmoor fills the gap between extended Long Range performance and cost-effective and barrel safe MV’s. Using the US Military’s XM1163, MV: 2,940 fps, 230gr Berger Hybrid OTM Tactical G1: 0.717 G7: 0.368, Muzzle: 4,414 ft-lbs. Reloading components can be found nearly anywhere. they have come a long way. You will get more bang for your buck choosing the .308 Winchester as your next Long Range caliber. 1,000m: 786 ft-lbs. I heavily recommend this caliber to those out there who want magnum performance without magnum recoil. However, for less bullet size, you can get a much better performing Long Range caliber…and for a lot less money too. And today there are Sooo. Take a .300 Winchester Magnum with a barrel life of 1,500 rounds and compare that to the 8,000+ barrel life of a .308 Winchester. Ultimately 38 Special/357 magnum if combined would actually make its way up to #7 and push 7.62×39 even further down the list, shockingly enough. History: The .224 Valkyrie was the child of an experiment by Federal in 2017 to reach into the 1,000 yard competition circuit (which was dominated by the .30 caliber class cartridges) with a small .22 caliber projectile. As 338 Lapua ammunition has built an outstanding track record among military snipers and sportsmen alike this option is here to stay. The components for reloading are also readily available. Savage .250-3000; (2.) 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