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I have had the same problem in a .30 Carbine and a .32-20 Blackhwak.
My problem was the chambers were left rough at the factory.
With maximum loads you could see annular rings on the cases.
The .32-20 is a convertable. .32 H&R Mag. loads that stick in the Blackhawk do not stick in my S&W M-16. None are over published maximum.
There is or was a Tech tip on this board that discussed polishing chambers in Blackhawks. It helps.
My problem was the chambers were left rough at the factory.
With maximum loads you could see annular rings on the cases.
The .32-20 is a convertable. .32 H&R Mag. loads that stick in the Blackhawk do not stick in my S&W M-16. None are over published maximum.
There is or was a Tech tip on this board that discussed polishing chambers in Blackhawks. It helps.
