Thread: Groups settling after cleaning

Maybe too tired Maybe few too many Jesus juices but im a bit confused . So the gun shoots amazing after 35ish shots from your cleaning regime. You have done the hard work and found the answer to your accuracy question.
Many guns never get a chance to show their potential. Especially hunting guns but you have done it. Well done.

But before i go to bed i would add barrel conditioning / fouling is the thing that i found affected the bedding harmonics more than anything in my rifles.
My big 338 custom that averaged. 4moa started to play up so after going over the obvious, I looked at barrel conditions after its 150-ish shots. Oh my gosh i could move a .25-.4moa group all over the place with different products or techniques but not consistent enough for a one shot /one kill gun. I sent gun back to builder to go over everything i had done and then check the (gasp) nightforcce scope. After many update messages and calls they decided to replace the scope as a last call and found a front base screw had broken its locktite.
Huge story/small, the 300gr bullet at over 2900fps had enough harmonics that the slightly loose 32oz scope would double group and different cleaning techniques and/or products would make it worse.
My Sako75 finnlite in7mm08 from new would send its 1st shot from clean 4" high. 2nd,3rd,4th,5th etc touching in the bull.
I put up withit and hoped it would run in. Nup.
I tried all cleaning products and techniques and found if i used inox to clean residue out but left copper in it would shoot fine . 18 years later i got the urge to hunt with it again but wanted it suppressed so after Friwi/DPT did their thing i went to the range and WTF .
Clean/dirty/really clean/oiled 1st 2nd,3rd 4th shot didn't matter. .25moa. The whole time the bore was affecting the bedding but not as much as the barrel weight of the suppressor could tune.
Bit of a rant but maybe someone can use this info/or not