| tinker |
| (.416 member) |
| 24/10/10 03:35 PM |
|
Re: LT Cap projectiles
|
CC-
Thanks for the note on those LT caps.
I hear you on the annular ring tooling marks, and I'd very much like to see one of these in-the-hand.
From a manufacturing standpoint, and from the cross-section photos I've seen -- my first and enduring sense has been that the conical portion was die-sunk.
The alloy figures that are noted above suggest a more ductile stock for the cones with the greater lead content, which would facilitate the deep plunge.
The nose looks thin, suggesting the stretch of the material...
I'll ping you with a note and follow up with you off-list on the generous offer -- Thanks!
Quote:
Tinker,
Let me restate that. I was told, by THE guy who makes LT copies, that the cone was spun. In looking at sectioned caps, and knowing how a cymbal is made, seems logical to me. The original LT caps to tend to have concentric lines like something was revolving during the manufacturing process. My friend a machinist likes to turn the cones out of bar stock. Just does not seem right to me. If they were lathe turned from bar stock, I would expect an even wall thickness for the entire cone, yet the originals tend to have thinner noses.
PM me with your information and I will send you an original Super Mag Explora round to dissect.
Thanks for the response, am not a machinist, so how exactly would you do it?
Boy you can really hash out things by throwing out a couple of bold statements....
Fun and you learn stuff too.Quote:
I'd like to see the evidence, and I very much doubt that they were made on a spinning lathe.
There's plenty of room for me to adjust my perspective on this, and I've spent most of my life running metalworking machines and tooling - modern and antique.Quote:
Cheers
Tinker