U.S.SFC_RET
Member
I posted this over on the firing line but no one is picking up on it so I will post it here,
I picked up a winchester M1 .30 cal Carbine that I have experienced shooting problems and noticed when I chambered a round the locking lugs wouldn't lock into place. I used a vernier caliper and measured the round just to be sure and the round was well within specification for length. Question I have is this, I know that you can back the barrel out to increase headspace but is this proper procedure? Or is proper prodedure to ream out the chamber? I would suspect if you back out the barrel the barrel would be loose and you would need shim the barrel. On the other hand to ream out the chamber to exacting headspace tolerances would allow you to run the barrel down to practially deadstop into the receiver. Which direction do I take?
I picked up a winchester M1 .30 cal Carbine that I have experienced shooting problems and noticed when I chambered a round the locking lugs wouldn't lock into place. I used a vernier caliper and measured the round just to be sure and the round was well within specification for length. Question I have is this, I know that you can back the barrel out to increase headspace but is this proper procedure? Or is proper prodedure to ream out the chamber? I would suspect if you back out the barrel the barrel would be loose and you would need shim the barrel. On the other hand to ream out the chamber to exacting headspace tolerances would allow you to run the barrel down to practially deadstop into the receiver. Which direction do I take?