01-08-2022, 06:36 PM
TAC is not the speediest powder, but should be doable. Also note that for the Hornady data, it is from an 18" barrel, so there should be some extra MV possible for your 22...
CFE and Lever are the ones giving the highest MV for this class as I recall, with AR comp another although not listed in Hornady...
8208 xbr is a contender but need to watch for over pressures when close to 28.+ grains in the 123 class, its limit for a given barrel comes up quickly.
'Course the first 2 mentioned, they do have some temp variability...
That chrony would help you a lot, knowing MV's is really necessary IMO.
If memory serves me the SST lots of times gets best groupings at around 2.245, for bolt action you have more OAL room to play with, but in an AR there is a limit.
CFE and Lever are the ones giving the highest MV for this class as I recall, with AR comp another although not listed in Hornady...
8208 xbr is a contender but need to watch for over pressures when close to 28.+ grains in the 123 class, its limit for a given barrel comes up quickly.
'Course the first 2 mentioned, they do have some temp variability...
That chrony would help you a lot, knowing MV's is really necessary IMO.
If memory serves me the SST lots of times gets best groupings at around 2.245, for bolt action you have more OAL room to play with, but in an AR there is a limit.
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