Yesterday I grabbed my custom 270wsm out from the basement with a box of handloads and went to the range to shoot a few and foul the barrel for our local deer season in a few weeks.
I shot 5 shot strings at 100yds and 200yds. Very surprisingly vertical was off, I was 3.5 inches high at 100 and 3 inches high at 200. Horizontal was spot on still. Both groups were .5 MOA as this rifle has always been a tack driver. I previously had it zeroed for 200 which put it a hair over an inch at 100.
Haven't touched the rifle other than cleaning it since last year where it was spot on. I'll check the action screws and the scope mounts but a thought I wanted to ask the group…
The rifle and ammo were in my basement where it was 58 degrees. We had record breaking high temp yesterday of 74 degrees. I grabbed the rifle and ammo from the basement and was at the range 15 minutes later shooting in 74 degree temps. The rifle and ammo were cold to the touch, then were both placed on out on the bench in the sun. I know temps increase speed but could it be to this extent??
Rifle and glass are both high quality products.
Any thoughts? I found this very odd as it's never happened before but I've also never shot in such drastic temperature differences.
I shot 5 shot strings at 100yds and 200yds. Very surprisingly vertical was off, I was 3.5 inches high at 100 and 3 inches high at 200. Horizontal was spot on still. Both groups were .5 MOA as this rifle has always been a tack driver. I previously had it zeroed for 200 which put it a hair over an inch at 100.
Haven't touched the rifle other than cleaning it since last year where it was spot on. I'll check the action screws and the scope mounts but a thought I wanted to ask the group…
The rifle and ammo were in my basement where it was 58 degrees. We had record breaking high temp yesterday of 74 degrees. I grabbed the rifle and ammo from the basement and was at the range 15 minutes later shooting in 74 degree temps. The rifle and ammo were cold to the touch, then were both placed on out on the bench in the sun. I know temps increase speed but could it be to this extent??
Rifle and glass are both high quality products.
Any thoughts? I found this very odd as it's never happened before but I've also never shot in such drastic temperature differences.