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Double Rifles, Single Shots & Combinations >> Single Shots & Combination Guns

TilleyMan
.333 member

Reged: 23/08/05
Posts: 272
Loc: Melbourne, Australia

Re: Case taper, extraction... and the Martini Cadet
01/09/09 08:37 PM

DD

Thanks for the update... yes, the .256 Win Mag is basically a .357 Mag case necked down to .25 cal with a 25 degree shoulder, good for ~2400fps with a 60gr bullet.

The .256 Max is essentially the same, but based on the longer .357 Maximum case.

Sportco in Australia bought up many thousands of ex-military .310 Cadet Martinis (mainly BSA, some Greener) and were then 'reconditioned' by surface grinding off all the serial numbers, unit and proof marks from the already thin walled actions, and rebarrelling them to .22RF, .22 Hornet, .25/20 and .32/20 in the early post WWII years when ex-military .303's were illegal for private citizens to own in some states.

They also fitted a rudimentary 'cross bolt' safety behind the trigger... not needed IMO, but perhaps required in order to sell to the public even in the 1950's.

http://www.sportco.org.au/intro.htm
http://www.sportco.org.au/models.htm

The breechblock below is from an ex-Sportco converted .22RF... note the off centre hole for the replacement Sportco rimfire pin. Someone has since converted it back to CF by dropping in a standard .310 firing pin.

Overseas Francotte Martinis and the BSA thickwall Martinis like the 1215 may well have central RF firing pins, but the Sportco converted ones I have seen here in Australia were all off centre... I'd say this is where the confusion arises, as quite a few converted Sportco Martinis have ended up in the USA

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Subject	Posted by	Posted on
Case taper, extraction... and the Martini Cadet	TilleyMan	17/08/09 09:35 PM
Re: Case taper, extraction... and the Martini Cadet	Tatume	17/08/09 10:08 PM
Re: Case taper, extraction... and the Martini Cadet	Otto	17/08/09 11:49 PM
Re: Case taper, extraction... and the Martini Cadet	DarylS	18/08/09 02:05 AM
Re: Case taper, extraction... and the Martini Cadet	xausa	18/08/09 05:16 AM
Re: Case taper, extraction... and the Martini Cadet	DarylS	18/08/09 11:15 AM
Re: Case taper, extraction... and the Martini Cadet	TilleyMan	18/08/09 11:53 AM
Re: Case taper, extraction... and the Martini Cadet	DoubleD	18/08/09 01:46 PM
Re: Case taper, extraction... and the Martini Cadet	TilleyMan	20/08/09 09:54 AM
Re: Case taper, extraction... and the Martini Cadet	TilleyMan	31/08/09 09:16 PM
Re: Case taper, extraction... and the Martini Cadet	DoubleD	01/09/09 01:34 AM
Re: Case taper, extraction... and the Martini Cadet	TilleyMan	01/09/09 08:37 PM
Re: Case taper, extraction... and the Martini Cadet	DoubleD	01/09/09 11:37 PM

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