The 6.8 SPC was a good try but not a good final result in terms of being usefull over extended ranges. Not a good all around performer. 115 gr. is too heavy and slow in that little case. In addition 115 gr. is too light in a .277 diameter bullet to have a high BC. I believe however that an 87-95 gr, .243 bullet would match up very well with this case and offer substantial terminal performance. This would also extend the usefull range of the cartridge several hundred yards due to incresed velocity and ballistic efficiency. I have used such bullets on large mulies with devastating results in close quarters, as well as at ranges approaching 200 yds. Far surpassing anything the 5.56 would be capable of.
I have read where early wildcat development of a 6mm SPC has yielded at least 2700 FPS with a 107 gr. Bullet. Decreasing the bullet weight some small amount (to 90 gr?) could increase velocity to near 3000 fps. This would be an extremely effective, efficient and small military round. Also very low recoil.
If they ever come through on caseless smart ammo though, this is all irrelevant.
Ruger should chamber their rifle for such a cartridge. Do it in the target configuration with Hogue stock and medium weight 20" barrel
I have read where early wildcat development of a 6mm SPC has yielded at least 2700 FPS with a 107 gr. Bullet. Decreasing the bullet weight some small amount (to 90 gr?) could increase velocity to near 3000 fps. This would be an extremely effective, efficient and small military round. Also very low recoil.
If they ever come through on caseless smart ammo though, this is all irrelevant.
Ruger should chamber their rifle for such a cartridge. Do it in the target configuration with Hogue stock and medium weight 20" barrel