qajaq59
Member
I don't remember the "why" but I recall someone saying in a different forum that you shouldn't use .22lr bullets to recast. Anyone know anything about that?
qajaq59 I don't remember the "why" but I recall someone saying in a different forum that you shouldn't use .22lr bullets to recast. Anyone know anything about that?
OK, I found the book. Mr. Frost, who worked for Winchester-Western for many years and then set up the Squires-Bingham ammo factory in the Phillippines, addressed it in two places. On page 27 in "The Bullet" chapter, he said:
"Pure lead is not used for lead bullets. It is too soft, damages too easily in handling and loading. Soft lead also upsets in the barrel when fired, losing both point and base shape. Pure lead is seldom used for bullet cores, again because it is too easily damaged and is more apt to separate from the jacket upon bullet expansion at the target." (Goes on to describe dual-core bullets with a soft front part and harder rear core.)
"Antimony is the usual hardening agent in the lead alloy. Antimony content may run from 1% up to 4 or 5%. .22 rimfire bullets from various manufacturers run from 3/4% up to about 2% antimony. 1 3/4% is a reasonable choice. A common core alloy runs 1 1/2% and works well in many bullets."
Tin-lead alloy has also been used for .22 rimfire bullets, and does make a good bullet. The percentage of tin needed to equal antimony hardness is about 4-5% tin vs. 1-1 1/2% antimony. Because tin costs much more than antimony, and requires greater quantities of material to get the same result, it is not a good choice for hardening lead alloys."
Then on page 135 in "The .22 Match Cartridge" he says:
"The lead is alloyed with antimony, arsenic, and if one can afford it, a bit of tin. One usable alloy is 1.5% antimony, .02% arsenic, and the balance lead. An even better alloy, but more expensive because of the high cost of tine, is .15 to .20% antimony, .02% arsenic, and 4 to 5% tin; the rest is lead."
tarnation
It's just a patent.Rube Goldberg is alive and well, and working for the greenies making ridiculous bullets.