According Marine Corps Times - Upgrading M16A4
#19
lwminton Wrote:Then the normal position would be closed. If you are at long range then opening it would be fairly easy - not much more than checking a safety or magazine. BTW I just bought a Grendel and was hoping I could use H4895 or RE15 with 120 gr bullets although I don't see to much discussion on those two. I have a 6mmAR and use those powders for 100-105 grain bullets and Whitley says they are preferred. 1 - 1.5" inch groups at 300 yards are within reach and I would expect the same from the 6.5 mm.

LW:

The mil doesn't need compensators on their carbines. It is a solution for a problem that does not exist.

4895, RL15, Varget -- there are numerous threads about these powders in a Grendel. Their bulk density is way too low to get the velocity you want. Sure, burn rate may be 'faster' than some of the more popular Grendel ball powders but you can't get enough of these powders into a Grendel case to give you decent velocity.

I shoot H 4895 in my 6 AR like Whitley recommends and it works great. Smaller diameter bullet in the same size case.

LR55
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According Marine Corps Times - Upgrading M16A4 - by LR1955 - 02-22-2015, 11:08 PM

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