I did not have a borescope then (I do now), so I cant say for sure. What I can say is that I pulled out some nasty slivers of lead on a regular basis when cleaning the barrel with a patchworm.What did the internal of that LW Poly look like.? Reason I ask is because I run one in .30 & its has been lapped . They should foul less then conventional land/groove combo's. I run slugs & pellets in mine too with very little fouling. I would have someone prep a poly for ya next time if you revisit them. I can do .75 at 100 with one on mild days. with 44's or 50's
Joe
Upvote 0