No idea on round count. Rough guess would be 250ish, but a fair number have been 27gr imr-4198 with 108gr at 2480fps. Cracked open a fresh can of 4350 and it’s still got plenty so that’s maybe 80-120 full house rounds.
No idea on serial number. It’s sitting in a safe at my cousins and I won’t be back till early next week
I forgot to grab serial numbers for ya. Slung some varget loads in between squalls this afternoon. Settled at 32gr, 108 eld-m in the lands didn’t bother to Chrony.