Finally got this all put together and to the range over the weekend to shoot it with and without the can (Otter Creek Polonium)
1. When I got the barrel in I swabbed the chamber and it came out clean. Ran a few patches down the bore as well and that came out clean too. Visual inspection saw no fouling or port erosion. I don't think this barrel had been shot much, if at all.
2. Got to the range and shot it without the can to get it on paper. Indoor range (can is still in jail so I was limited to indoors at 25 yards for my conjugal visit so keep that in mind)
3. First 60 - 100 rounds groups tightened up as expected with a new(ish) barrel.
4. Running an A5 with Sprinco green and an A5H2 buffer. Recoil impulse was good and ejection pattern was right around 3:00. It was a lot softer than I thought it would be to be honest.
5. Put the can on and ran another 100 rounds through it. Groups continued to get smaller. I was actually surprised by the lack of gas to the face. Using a Radian CH so no gas diversion. This same can on other rifles is a bit gassy so I was expecting this to be the same if not more so.
Conclusion? 200 rounds or so is by no means a thorough evaluation but initial impressions are that my sample size of one barrel from this lot is pretty darn good. Maybe I got lucky and got one that sat on the armorers shelf? With the can and an RDS and after breaking it in a bit it was consistently .5 to .75 at 25. So probably a 2 to 3 inch gun at 100? Which for a 10.5 milsurp barrel I am fine with. On and was shooting 55 grain Igman .223.
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Originally Posted by Dutch110
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