"Common denominator: 55gr through 1:7 barrels."
Have you run across any one having trouble that didn't have 1:7 twist? Or more with 1:7 barrels with the problem?
55gr not the problem. Read through this thread.
I've shot plenty of 55s through 1:7 barrels. Never been an issue as evident in the picture below. This picture is the exact same load, 10.5 barrel, 1:7 twist. Only difference being I used a Hornady 55 instead of the MG 55.
JDR 10_5in 24_5gr TAC 55gr Hornady (Large).JPG
I don't have any problem with 55 in 1:7 either, its 95% of what I shoot thru it.. Let me restate the question - is the problem with MG, whatever it is, limited to just 1:7 barrels or is it occuring in all twists. If no one is having trouble with 1:8 and 1:9 I can still use the 2 unopened cases of MG I have, otherwise, I can't use them in anything I've got
There isn't much if any hard info to be had and I'm just trying figure out which way to go, although at this point I've very little or no interest in opening up a case of this stuff.