It had been my understanding that the barrels had been improperly heat treated such that the middle portion was softer than the two ends, such that when the barrels were broach rifled, the cutter cut deeper in the middle where the metal was softer. Like most breechloaders, the bullet get swaged as the move through the barrel such that the tightest point should be the muzzle. I had one of the bad barrels and first tried lapping the bore before deciding to have Hoyt reline it. Problem solved.
First Cousin (7 times removed) to Brigadier General Stand Watie (1806-1871), CSA
1st Cherokee Mounted Rifles | Principal Chief of the Cherokee Nation 1862-66
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