koger
Silver $$ Contributor
Went out today, to zero a Savage LA I had installed a new take off factory sporter barrel, 8 twist. I did not do break in, 10 shots to zero, 25-100yds, then shot a 5 shot group. Group was decent since I just did a zero off a portable rest, with bull bags, .628 center to center, 5 shots, in a horizontal group. I then shot a couple of small rocks 4" or so in size pushed into a red clay bluff, 300yds away and hit both them first shot. Looking at the target, I noticed little grey tails at the edge of each bullet hole. This looked like a lead pencil smear, anyone enlighten me as to what this is, what it means.?