'Preston' - Welcome to the KCA Forum.

It would help if you posted some close-up pictures of your bolt, especially, showing the rear of the front locking-lug.

Do you have any brass cartridge cases that have been fired in your Krag? A picture of fired cases will tell a lot.

FWIW - In the old days, some shooters use to 'lap' the bolt lug, so that the bolt would contact the receiver both at the front lug and at the rear of the bolt's 'safety-rib'. The down side of this practice was that it did not really make the action stronger, since it introduced more bolt 'free travel' or 'Head-Space'.

If this has been done to your Krag, new old stock (NOS) bolts are available from 'Movieman630' on ebay for $55.00.

You can check your present bolt's fit by removing the striker mechanism & extractor. Insert the 'bare' bolt into the receiver. There should be (approx. 2 or 3 thousandths) clearance between the rear of the bolt rib and the right-rear of the receiver.

If the rib contacts the receiver, it is likely the front lug was lapped at some time.

Head-Space is probably 'overly worried about', when the rimmed .30-40 Krag cartridge is the subject.

Double-Check your 'Field' gauge and make sure the rim measures .073".

Most of us 'neck-size' only and after a single firing the case is fire formed to the Krag's chamber.

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