I have an 18" 5R button rifled stainless Satern and it's normally a 1 MOA barrel, though I have had one 10 rd group with a tweaked handload that was .66 MOA. The chamber looks a bit roughly machined and I chamfered the muzzle because it was sharp and jagged when I got it. I've spent some time polishing the inside and it functions reliably but the .093" gas port delivered too much gas which I cured with an adjustable gas block. The throat is longer than I like and if I seat bullets at mag length I'm still about .030" off the lands. All things considered I think it's OK.
I'm near buying a match grade barrel to replace my Satern. I'll only pick up 5 oz in the change.
I'm near buying a match grade barrel to replace my Satern. I'll only pick up 5 oz in the change.