Is this a Martini International? If so, why would a match chamber not be possible? The shape of the breech block, combined with the mechanical advantage of the lever, will cam bullets into the chamber. However BSA cut their chambers, cartridges do not seat fully under finger pressure.

One important consideration for rebarrelling is the profile of the barrel. Remember, other than the Mk 3 International*, almost all Martinis bed on the barrel. You'll need to factor in the additional cost of drilling/tapping the barrel, and either matching the profile of the original, or altering the bedding in the fore-end.

*And the Vickers

 

I would do some serious testing and evaluation with a variety of good quality ammunition with the barrel that's fitted, you may find it shoots very well.

 

Points taken.
How would l tell if an Intnl?

 

A quick photo would tell us if it's an International and what MK it is.

 

It loads top only...no cutaway. It shot very well looking at tgts shot by GShop chronies

 

That likely will be either a Small-frame, such as a BSA Model 12 or a converted large frame (military size) action/rifle rather than an International.

Personally fitting a new match-chambered barrel would not be worth it. If the original barrel is toast, relining would preserve the looks and bedding. While it's not impossible the barrel is knackered, given smokeless powder/non-corrosive primer loads were not standard when this rifle was young, the test groups suggest thinking if a new barrel might be a but premature.

Remember this isn't a modern benchrest rifle. If it was built as a target rifle, accuracy standards, though keenly sought at the time, were not so demanding as today.

 

Info well rcvd....

 

I have a model 12 rebarrelled with a Shilen match barrel with a match chamber. It handles the combo very well, and I've won 200 yd. matches with it.

martinishootist

 

Well, the Martini in the collection wasn't included. Owner kept it. :/
BUT!!!! I see one just showed up here.

 

..

 

i also am on the path tom ! a mk3 is on it's way to me! should be shooting next Saturday !

 

Where is yours coming from G?

 

Unfortunately we have had a trip to Holland Ml planned sinceJan so will miss this year's get together. :/ :/
Don't know how close we will be to Scot but tied up w 2 church couples. Was planning on bringing N133....and other stuff.