(Continued from Part 1. This concludes the article.)
I can reload, so it is possible have a pile of very accurate 77 grain OTMs reserved for this kind of work as a part of a contingency plan that excludes the use a bolt gun. At 65 cents per round, I would get a pile and not let my stock go below 500 rounds. This is not blasting/training ammo, use the 55-grain bullet for that, but we would need to use up part of the case getting familiar with the round. The barrel twist rate should be 1:8 or better yet, 1:7. If your current upper does not, then get a spare upper with a 1:7 twist 20-inch barrel and leave the scope on it.
The 75/77 grain .223 ammunition would also be a better fight stopper than 55 grain FMJ, as the bullet tumbles and leaves a wider wound channel. And because it is a soft match bullet, there will also be some expansion and fragmentation that typically does not occur with FMJ. This means it can be a dual-use ammunition, for up close home defense ranges and for extended ranges.Continue reading“Reconsidering Rule .308 – Part 2, by Tunnel Rabbit”

