Who made the upper?
My son got one a few weeks ago and all he did was polish the feed ramp and remove any burrs or sharp edges.
So far it has fed 350 grain round nose and the 325 grain bullet i use in my 45-70.
We just got in a new mold from N.O.E. and it casts a 396 grain round nose flat point.
We started powder coating cast and it has done a nice job of keeping the barrel clean.
No cloud of smoke is nice as well.
