Home Forums Hunting & Shooting Hunter's Campfire M1 Garand barrel - does this look normal?

Well, interesting day. I went to range today with some of my reloads from last night. Sierra 150 grain SPBT Gameking over 46.5 grains of IMR 4895, CCI 200 primer, Federal brass. Shot 24 rounds, average velocity right around 2650 fps. A little faster than I thought it would be, was going for 2600 fps. Will probably back off a 1/2 grain. Rifle cycled perfectly, no signs of pressure on the brass. But the Garand is really tough on the brass when ejecting, beat up the case rims pretty good. Interesting part was looking in the barrel when I got home. It looked really smooth! I then cleaned it thoroughly, scrubbed it with JB bore paste, cleaned again, and oiled it. Barrel went to looking crappy again! I think this one will just get seasoned and stay "dirty". Accuracy was good, better than my eyes are at 100 yards, photos attached.