Alrighty, copy that Elvis rendition, “Baie Dankie”.
The powder coat information / material search shall get serious tomorrow. I think, basic black is the color preference. It just matches most any outfit, perhaps an occasional red for special events.

So’s, these CZ’s that we have, 458 Lott / CAL 458 WIN. MAG. are apparently the standard 458 Winchester that were rechambered to Lott here in the state. This one definitely has a Deep-Throat throat. Obvious to anyone that has stayed in a Holiday Inn. Watergate Hotel not required.
I assume these cavernous, projectile hungry beasts have a standard twist of 1-14” ?
It appears, the Barnes 450 grain TSX has to be seated at the 3rd groove to function in the magazine. Otherwise, that bullet with full length, once fired brass would fit with about half of the bottom of the solid shank in the brass.

The MRC Lott is definitely restricted to front groove seating with the 450 TSX, due to magazine length. And appears to have the standard Lott throat.



Comments from The Square Table about powder-coat painting of cast bullets are appreciated.
Collective Sirs: Buy a donkey.
The PC paint prevents lead exposure in bullet handling, but wash your hands anyway !
It allows us to hang the grease grooves out in the .458 WM throat without the mess of exposed grease.
Grease may be necessary to keep BP fouling soft, but not so with smokeless.
Even BPCR loads may use PC-painted bullets, as long as the grease is used too !

Proof of water is proof of life for concept of .458 BMW surrogacy for .458 WM+ fast-twist testing:
The .458 B&M was supposed to have a case length of 2.295" as originally conceived but B&M had to shorten it to 2.250" max,
due to problems getting bullets to fit in the magazine.
The .458 Lott suffers from same problem with some rifles.
So the .458 BMW is trimmed to 2.240" brass length per standard safety practices, and it is a tiny bit under 95 grains H20 gross.
The .458 WM+ is easily allowed to go to 2.505" max brass, trim to 2.500", and it is thus a tiny bit over 95 grains of H20.