I’ve been using the Ideal/Lyman mold pic .pdf, which I got from the ‘net somewhere, so I can see what people here are talking about when they call out mold numbers. There are a few boolit designs pictured there that I don’t get the purpose of or why they look like they do, so I figured I’d ask and find out what other people know about them and their history. I notice all of these have a 5xx suffix to the mold numbers, so maybe they were designed by the same person or they’re related to some new idea, thinking or alloy maybe? The first group look like SWC heel boolits, but they have no lube grooves and their shape suggests a much later design. Is that a long gas check shank? It would leave one heck of a lube groove. They are mold numbers 357511, 357512, 429510, 429513. Does anyone cast any of these, and how do they shoot?
Having trouble posting images for some reason. . . . . Hmmmff, what the. . . figger this. . . how the heck is. . . mutter grumble, snort, GAAAAH!. . . . Maybe later.
There’s another bunch I haven’t figured out what the thinking was and they’re sort of the opposite of the narrow driving band and long shank type above, with wide driving bands and tiny lube grooves, and they have a conical point of lead poking out of the heel. A long time ago, I read of a cast boolit idea, maybe before gas checks, where a concave zinc washer was riveted to the heel to scrape out any leading left behind. Is this them? Most have almost no lube capacity. Considering how little lube they carried, maybe they didn’t work so well? I never noticed them mentioned by anyone. They’ve sure got plenty of driving band, but velocities would need to be pretty low, I’d expect. I’ll bet they’d do well with powder coat. Zinc boolits, maybe? The mold numbers are 358500, 358502, 358503, 429508, 429509, 429518, 452505, 454506. What’s their story?