Howdy Pards
Would appreciate some input on use of an extra-hard lead alloy for bullet casting. This may be covered in older posts but my simple mind hasn't been able to find what I'm looking for.
First off, I'll give a shout-out to Rotometals, the firm that advertises on the mast head of Cast Boolits. Ordered some linotype from 'em and appreciated the good deal and fast shipping. The lino is in tiny type-set pieces that are very handy to a small-scale bullet caster to either melt into ingots or add directly to softer alloys to harden them somewhat and improve casting characteristics.
My question concerns the 64.5% lead/23% antimony/12.5% tin alloy Rotometals describes as Foundry Type Nuggets. Seems to me it might have at least two uses (and probably others as well): (1) casting extra-hard bullets for use in high-power rifles for loads approaching jacketed-bullet velocities or (2) even little bits of it could be an improvement over lino for adding to soft-lead alloys to add hardness and improve casting qualities.
Any of you Pards have some words of wisdom/words of experience/both that would add perspective? I've thot about a monotype mixture (72-19-9) but the Foundry Type Nuggets from Rotometals would be even harder. It's also occurred to me that, after a point, extra hard alloys may represent an increase in expense with little actual improvement in bullet performance. Has that been the experience of some of you Pards?
Curious about your experiences with extra-hard alloys for casting and for additives to softer lead alloys. Ditto for references for more detailed info on the subject.
Many thanks and Happy Trails
Fort Reno Kid