ORIGINAL: mello_collins
... You mentioned a trigger job. If that was since last season, the smith retightened the action screws. That can change the harmonics of your rifle and thus the change in groups.
mello
Ooooh, I
like that one! Sounds not only plausible, but sensical, too.
Yes, the lot numbers on the ammo are the same. In fact, some of it is from the same boxes.
When it comes to copper, I likely have
less than last year. When I clean, I'll let the foam sit as long as overnight, with the barrel plugged, andI'll do it several times. When I subsequentlyuse Shooter's Choice copper remover, there's no blue on the patches whatsoever.
For me, it's actually been a good thing, as I'd rather shoot the 180's if they'll group well.
Thanks for your input!
FC