Very little blow back modified orig disc

[rjhans53]

This is a two part thing, one is trying to post pics the other is using my modified orig disc bolt the small amount of blow back I get after 20-25 rounds 110g of 777. I went to the range this morning trying different bullets, to my surprise the 240 remingtons shot as good as anything else. they where shooting sub 1/2" @ 50, the 4 knight 260 lead bullets shot around 3/4" @ 50. Overall a good day. This is one of the disc extreems on gunbroker for 178. To be fair, I've modified a MK-85 stock, free floated the barrel from about 3" in front of the recoil lug.

[grouse]

Thanks for the info