13 November 2004, 03:31
HammerSure several have already done it...
What is the performance of the long Remington Ultra Mag case when necked to 458 ? Who is chambering for it and who has loading dies ?
Have an extra left-hand Montana action designed for the RUM case family and it needs an excuse to be completed.
Hammer
13 November 2004, 11:35
460wbyI know, I know!!
But with no other changes but opens it to take 458 bullets, you'll get at cartridge that has alot of bodytaper and will feed like a hot knife trough butter. And the Lapua brass can handle a few psi's more than a 416 Rigby-case can!!
