Headspacing

Due to several posts regarding headspacing, I have gone thru my carbines and checked them out. Some were a little tight, but the bolt would fully close with slight pressure on the go guage. Others were a little loose, but the bolt would not fully close on the no go guage. On one however, the bolt fully closed on the no go guage with no interference at all. I then tried two other bolts with the same result, one of which appears to be new. The carbine is a 9-43 I.B.M. with a replacement 4-44 Indland barrel with a muzzle guage of 1 1/2. The barrel appears to be correctly indexed. It is not a CMP carbine. Is there anything that can be done to correct this problem? Fortunately I have never fired this weapon! Thanks for any imput.

Not a problem if it does not close on a field gage.
Round post WW2 Underwood bolts have been known to help.

Scott

Problem is it's closing on a no-go... If you intend to fire the weapon it will need the attention of a smith...

If it doesn't close on the field guage you are good to go. Its the field guage that is critical, not the no-go. No-go is the max for a NEW chamber. Field is the max for safety.