Quote:
Originally Posted by 260 Rem
I think the early sign of copper fouling is the occasional unexplained flier ... the fliers eventually becoming the norm. I have never personally tracked the effect of progressive fouling but I suspect groups do not fall off dramatically and I think it would take a lot of fouling to move a consistent 1/2 MOA shooter up to 1 MOA ... but at some point, it will happen.
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Eggzakly!!
Copper fouling would be subtle and incremental,and were not talking about a shift from .5 to 1MOA,this is a sub moa rifle going from .75 to 8.0 MOA!!
If that’s copper fouling then that’s in the realm of full on barrel obstruction,haha
I’m with SakoShooter,my money is on scope internals.