Terni bolt action rifle bolt?

Question

i have an old terni (or mannlicher) bolt action rifle that needs a new bolt but no one knows the model. all it says (that i can find. its kinda rusty) is on a multi-flat-side "thing" at the near end of the barrel. from "top" to "bottom":FP-18-mall italy-terni-DL5025. plz help me. i cant use it without a new bolt.

Answer 1

Well, it's not a Mannlicher, that would be Austrian. It's an Italian Carcano, made in the Terni Armoury.

Answer 2

You may need to remove the forearm to find more markings. I would also try to find a book on that type of rifle.

Answer 3

You have a Carcano Rifle but I don't know what caliber yours is in.  You an trying Gun Parts Corporation or Springfield Sporters for a replacement bolt. Be advised that there is no way to assure the head spacing will be correct unless you have it fitted by a gunsmith.

Answer 4

Good luck.  Terni is a location where the Italian government manufacturers weapons. Yours sounds like a Mannlicher, which made several models were  from 1891 through the second world war in several chamberings.  Go to www.antiqueguns.com and post a COMPLETE description in the WWI-WWII section.

You could try Numrich Gun Parts Corp. http://www.e-gunparts.com/dept.asp

Their site is down right now, but may be up later.

Answer 5

Bolts are fitted individually to each rifle. They are sometimes marked with the serial number of the rifle to prevent errors when re-assembling after cleaning or repair.

When the bolt is turned down it cams the cartridge forward into the chamber. Exactly how far it pushes the cartridge is critical. It is called  "headspace". If too tight or too loose it is very dangerous due to the enormous pressure generated when the powder burns.

You should forget it, or take it to a good gunsmith. If you decide to do it on your own, you should buy headspace gages and check your headspace. Clymer is a good brand.

The "no go" gage should be too big and not allow the bolt to fully turn down. If it does turn down you have too much headspace and your brass case could split causing super hot gas to rush back into your eyes. This is corrected by setting the barrel back.

The "go" gage should allow the bolt to close fully. If it can't

close you have too little headspace and the rifle could blow up. This can be remedied by lapping the locking lugs with lapping compound until the bolt sets back enough to allow proper headspace.

I will not tell you where to look for a bolt because without proper knowledge you should not be "building" a gun. Do yourself a favor and use the rifle for decorative purposes only'