Starting around 1960 we hung around Ralph Laffoly's gun shop in Melrose MA. Ralph told us a lot of stuff, some was true. He used to get bushels of 45s from the National Guard at Camp Curtis Guild, take them apart, select parts and put them together into accuracy models, and send them back. The only tool he used was a lead hammer.
Anyhow, Ralph told us to always look through the barrel before shooting a gun, because a patch or a dreaded mud dauber wasp nest in the barrel would cause a ringed barrel.
For 56 years I've looked through barrels before shooting.
Today, for the first time ever, there was something in the barrel, a SMALL fired primer was in the M11 22-250 barrel.
Yesterday AM I took the HV barrel off, cleaned it and the M11 barrel, and screwed the M11 barrel on. I have no idea how the primer got in the M11 barrel, unless it was a mud dauber wasp.
I'll continue looking through the bore before firinng a gun. Thanks Ralph.
