Hi everyone, I was wondering if any of you can provide advice/experience on a good 6mm AR15 cartridge. I plan on building a competition upper with a 18"-20" barrel for my lightweight AR15 which I use for 3 gunning. In terms of usage requirements in order of priority:
1) can be reliably loaded in normal AR15 magazines up to 10 rounds,
2) ability to reach 600-800+ yards,
3) hopefully 3000+ round barrel life,
4) manageable recoil and follow ups for PRS and F-class competition,
5) easy to reload as a beginner,
6) greater resilience to wind drift &
7) perhaps opportunity to take down medium game.
In terms of the cartridges I've been considering, I'm looking at:
1) 6mm Mongoose,
2) .24 GPC,
3) 6x6.8 SPC,
4) 6mm FatRat &
5) 6mm Grendel.
Since these are all wildcats, it's hard to find direct comparisons on the forums. Heard lots of great things about all these, but would love to hear everyone's thought. Many thanks!
1) can be reliably loaded in normal AR15 magazines up to 10 rounds,
2) ability to reach 600-800+ yards,
3) hopefully 3000+ round barrel life,
4) manageable recoil and follow ups for PRS and F-class competition,
5) easy to reload as a beginner,
6) greater resilience to wind drift &
7) perhaps opportunity to take down medium game.
In terms of the cartridges I've been considering, I'm looking at:
1) 6mm Mongoose,
2) .24 GPC,
3) 6x6.8 SPC,
4) 6mm FatRat &
5) 6mm Grendel.
Since these are all wildcats, it's hard to find direct comparisons on the forums. Heard lots of great things about all these, but would love to hear everyone's thought. Many thanks!