This was my first 6mm and I'm on my 3rd barrel now for my 243. The 6XC vs. 6x47 Lapua vs. 243 Win vs. 6mm Crusader becomes a mute point if you can't find brass anywhere. A fast twist, 1 in 9.5, 1 in 9 or 1 in 8 will stabilize heavy bullets better than light bullets. But heck, the .243 has been "Golden" since, 1955 ! Why not the 6mmXC? Redding expander was installed or that the expander had been modified with a taper. More The Gun Nuts. Agree, with everyone touting, the .243 Win., as lots of Ammo available, EVERYWHERE ! Order a barrel or two from your maker of choice and just run with what you've got. Latest. Specifically, what about the .243 are you trying to 'fix'? The 6mm Creedmoor vs .243 is a very interesting comparison. While all of those cartridges you mentioned are good performers, the time of flight for the 6mm Creedmoor and 6XC will typically be the lowest, and therefore wind drift will be less. The downside to both is the rifling twist must be suitable for the bullets you use. The 243 Winchester dies will be cheaper than the rest and the brass too. For example, Alliant’s Reloder 16 Load Data Page shows a 2932 FPS load with Berger 130 grain Hybrid bullet in the 6.5 Creedmoor. We then took a .22-.250 case and ran it fully into this sizing die and then loaded the rounds and fire-formed the case in the 6mmX chamber. Both of those launch similar bullets at similar speeds. April 21, 2015. Barrels are expendable. Like the .243, it is a short action cartridge that functions properly in short (.308 length) rifle actions and magazines. Those that saw my discussions in a recent film with Freddie Nesbitt, may recall our discussing a lesser known calibre, the 6mm XC. Conservationist. Remington dubbed theirs the .244 Rem., while Winchester went with .243 Win. 6mm Apex; 6mm PPC; 6mm BR; 6mm AR; 6mm XC.243 Winchester.243 WSSM.240 Weatherby Magnum.244 H&H Magnum; 6mm SAW; 6mm Dasher; In 1955, both Remington and Winchester introduced a 6mm cartridge. The 6mm and the .243. The difference bewteen a 6mm Rem and .243 is the case length and about 100 fps with like bullet weights. They will also have flatter trajectories. First, I don't know your intention of this rifle. What, a sweet track record ! 6mm XC Norma Details Tuesday, 18 August 2015 Peter Jones takes a closer look at the new kid on the block, the 6XC from Norma. We also think the powder will work well in these popular match cartridges: 6XC, 6mm Creedmoor, .243 Win, 6.5×47 Lapua, 6.5 Creedmoor, .260 Rem, .284 Win, and .300 WSM. Merits of this case vs. others,6mm CM, some of the 'stretched' 6mm BR derivatives, etc.) Pick a cartridge that you can get brass for (assuming that you have a supply of 6mm bullets already) and build a rifle around that. Best Ballistic Performance: 6mm Creedmoor or 6XC. That's what I'm gonna do, 6mm SLR, a WINNER and what, the .243 Win., SHOULD have been! to 6mm [.243 cal.]) If you decide to resell the 243 it will get you a better turnaround than these oddball cartridges. The .22-.250 case neck could initially be expanded using the sizing die provided a tapered (.17 cal. The 6mm Creedmoor has found favor with Precision Rifle Series (PRS) shooters, a rather arcane long range, steel target, timed shooting competition in which AR-10 rifle actions are popular. Alaskan Coalition Seeking Permanent Protections … Similar MV to a 243 using less powder Longer neck of the XC allows chasing the lands as throat wears. There's a lot of public information with the 243 as well. The case capacity does seem a bit high, but if thats what your scales show, then I guess thats what it is. By David E. Petzal. It’s a look at an old but trusted and proven cartridge in the .243 Win and a look at a new 6mm Creedmoor cartridge where the results have yet to come in on if it is here to stay or will eventually fall back into obscurity. Then, as stated by snox (post #3) you can go to .243 Ack or better yet, the 6mm SLR.
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