Fast14riot
Gold $$ Contributor
All my barrels are 1:8 twist.
260AI roll call
- Thread starter Fast14riot
- Start date
Fast14riot
Gold $$ Contributor
So, talking with a buddy who just got into 260AI, re: measuring shoulder bump. What comparator diameter are y'all using? I've always used my custom 0.355" diameter comparator for mine.
Last edited:
I use the .400" comparator.
I use the Stainless Steel Sinclair # 40A insert from Brownells.
Fast14riot
Gold $$ Contributor
Did a narrow powder charge test at a 600 yard match today. 45, 45.1, 45.2 of N555 under the 153.5 LRHT. Weird winds by the end of the day. Last match there were 4 flags pointing in 4 different directions and dust devils rolled across the infield. Flags literally pointing at each other.
Only have 156 rounds on the gun now, its settling in nicely. Last match I shot 45.2gr and it showed a bit of vertical. Dropped points were usually straight out the top. Heavy mirage as they just did a controlled burn at the entire range, so pure black ground on a 93° day.
Managed to grab top honors as well. Last match we did no sighters just for fun, which made everyone wait for someone else to shoot first, lol!
Still need to do a tuner test at long range, but should have it dialed in and groups shrunk down once the barrel settles in in the next 100 rounds or so.
Only have 156 rounds on the gun now, its settling in nicely. Last match I shot 45.2gr and it showed a bit of vertical. Dropped points were usually straight out the top. Heavy mirage as they just did a controlled burn at the entire range, so pure black ground on a 93° day.
Managed to grab top honors as well. Last match we did no sighters just for fun, which made everyone wait for someone else to shoot first, lol!
Still need to do a tuner test at long range, but should have it dialed in and groups shrunk down once the barrel settles in in the next 100 rounds or so.
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