03-31-2018, 02:52 PM
Made it back to the range yesterday to do some more work on the loads I'm making. The gun shot really well, but this morning I decided to clean it up a bit. Got a good picture of the crown.
[ATTACH=CONFIG]11457[/ATTACH]
Also noticed something about the extension that I decided need to be mentioned here. The feed ramps are much larger than typical M4 ramps.
[ATTACH=CONFIG]11456[/ATTACH]
Proof research's website calls them Grendel ramps which makes me believe they are tuned to the larger diameter of the bullets to not scratch them as they feed in. Something I found interesting. I'm not sure if any of the other barrel manufacturers do this, but the Faxon does not (not trying to make this a Faxon barrel thread, just the only other Grendel barrel I have yet).
I have some more bullet types and powders to test here should have some more accuracy results in the coming weeks.
Austin
[ATTACH=CONFIG]11457[/ATTACH]
Also noticed something about the extension that I decided need to be mentioned here. The feed ramps are much larger than typical M4 ramps.
[ATTACH=CONFIG]11456[/ATTACH]
Proof research's website calls them Grendel ramps which makes me believe they are tuned to the larger diameter of the bullets to not scratch them as they feed in. Something I found interesting. I'm not sure if any of the other barrel manufacturers do this, but the Faxon does not (not trying to make this a Faxon barrel thread, just the only other Grendel barrel I have yet).
I have some more bullet types and powders to test here should have some more accuracy results in the coming weeks.
Austin