- Aug 2, 2021
- Reaction score
Shot the GPR for the first time today. I forgot just how much I enjoy it! Anyway, looking at my patches I definitely need something thicker and I need to run a scotchbrite pad thru the barrel. Here is what’s weird. Due to a full range I had to sight in at 100 yards. In order to get on paper I had run the rear sight all the way out and use 100 grains of powder. The charge size may be irrelevant as I was just upping it till I hit paper. Would a to loose patch/ball cause a significantly weak enough seal to cause this? I can’t imagine the rear sight should have to be that high. Oh yeah, .490 ball and .0118 patch. Spit lubed.