Thread: Moulds/sizers for 577/450 Martini Henry

Originally Posted by Parabellum

Hi guys,

Stuck looking for a mould for my 577/450, slugged the bore and got .465" but I'm having trouble getting the right size moulds. Cast bullets in Oz has a 468 mould but they aren't shipping at the moment (and is horrendously expensive), I see that reloaders has a 476 mould and maybe this could be sized down? Haven't done much casting before so help would be appreciated.

Cheers

You need the mould to cast no more than .003" to 004" over groove diameter any bigger puts too much stress on the lube sizer and the bullet
The Lee .476 I have used and it is not up to it piece of junk really, try Accurate Molds in the USA I have just ordered a mould from them no mention
of shipping problems, They probably have what you need in their catalog, Another option is to paper patch .458" cast bullets; I think the 577/450 did have paper patched
bullets available.

Originally Posted by shooternz

You need the mould to cast no more than .003" to 004" over groove diameter any bigger puts too much stress on the lube sizer and the bullet
The Lee .476 I have used and it is not up to it piece of junk really, try Accurate Molds in the USA I have just ordered a mould from them no mention
of shipping problems, They probably have what you need in their catalog, Another option is to paper patch .458" cast bullets; I think the 577/450 did have paper patched
bullets available.

Might try those accurate moulds, seem like they might do the trick.