I took my rifles to get their barrels threaded yesterday. My buddy/gunsmith put the first barrel in the lathe, cut the threads, and then we screwed on my Thunderbeast 30p-1 to check run out….which was less than 5 thousandths…bore of the suppressor running dead nuts in the center on the suppressor.
Next we unscrewed the 30p-1 and installed a Silencerco Trifecta mount on the same barrel, and then screwed on a Specwar 7.62. The runout here was anywhere between 5-7 thousandths….but when looking at the bore of the Specwar, it is noticeably NOT in the center of the can. When we had it on the barrel and spun it in the lathe it looked like the entire can was wobbling because the hole was not centered. Is this normal?
Next we unscrewed the 30p-1 and installed a Silencerco Trifecta mount on the same barrel, and then screwed on a Specwar 7.62. The runout here was anywhere between 5-7 thousandths….but when looking at the bore of the Specwar, it is noticeably NOT in the center of the can. When we had it on the barrel and spun it in the lathe it looked like the entire can was wobbling because the hole was not centered. Is this normal?