10.3 x 60 R does any one have experience with this cartridge

[Ernest]

A friend of mine picked up a combination gun in this caliber and want's me to help him build /buy some ammo for it . I have worked with several British nitro cartridges but never this one.

Any advice about where to start with this one.

Ernest

[indian joe]

A friend of mine picked up a combination gun in this caliber and want's me to help him build /buy some ammo for it . I have worked with several British nitro cartridges but never this one.

Any advice about where to start with this one.

Ernest

rebel gun works in australia has 3 packs of 20 rws unprimed cases advertised on their site $95 aud per pack

[indian joe]

just a W A G but you might make useable brass from 348 winchester??

[Wayne Smith]

You need to do a chamber cast to get the dimensions that you will need. Do you have any of the cartridge conversion books? They can sometimes give you a hint of how to proceed. Check CH4D.com to see if he might already have that in his catalog.

[martinibelgian]

That's the same case as the brit 450/400 bpe or nitro express I believe. Still used as a hunting round in Switzerland.

[Ernest]

thank you for the replies. I have some leads now . I have some Bertram 450/400 2 3/8 cases in route. I was surprised that quick load has the 10.3 x 60 R listed. dies and bullets are next. Bore is supposed to be .415. I suppose .416 cast would work. I'll see how this works.

[curdog007]

A case full of black, slightly compressed. 400 slick with two wraps of 16lb paper, you'll be very close.
Works for me.