Have just had a mate give me his 457621 mould to cast a few bullets out of, does anyone know much about this bullet? I have looked in all my old Lyman books and can't find any description of it at all. It weighs around 485 grains from my alloy, looks kind of like the Govt bullet but has a longer rear driving band. The last band measures .458 as cast while the other 4 driving bands measure .452. Just wondering if anyone knows what it might have been introduced for? Maybe for rifles with bad BP fouling so that subsequent rounds could be chambered easier?

Regards,
David.

I think I have an idea. The front bands are designed to be "bore riding" so that the bullet can be seated far out of the case in a rifle barrel with a normal throat, probably for a 45-70. This will allow more powder to be loaded, basically duplicating 45-90 ballistics from a 45-70 case. I have solved that problem in my Rolling Block 45-70 by cutting the chamber with an Eric Greer designed reamer that cuts a 12 mm throat and allows me to seat a 550gr Postel bullet with only 5mm in the case. This mould you have will allow you to do the same thing in a normal factory throat.

Sean.

might this be the arsenal bullet for the 45-85 round for the Springfield?

Rich
DRSS

Here is a link to all the old Lyman bullet moulds.

http://www.castpics.net/RandD/Lyman_moulds/Lyman_moulds.htm

B.A.W,
Thanks for the link, I actually have a copy of the book these pages were scanned from, and it's not listed either.

Thanks,
David.