from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. to lengthen or widen the body of a cartridge case by firing it in a gun that has the same calibre but a larger chamber.
Sorry, no etymologies found.
The brass would fireform to the 30 cal chamber possibly splitting the neck.
To my pleasant surprise, the rifle was not only headspaced correctly to chamber my AI ammo (which was actually more than I had hoped for; I had assumed I would have to fireform a whole pile of new .257 Roberts brass into custom .257 AI brass for that particular rifle), but OALs of 2. 91-2.93 "" with various bullet weights and types was not a problem either.
You can fireform standard .280 in it and then reload.
I believe Jarrett can also provide brass and loaded ammo for it - if indeed it is a .280 Ack.Imp. Then, and only AFTER you've had the rifle checked and OK'd by a qualified gunsmith, you should be able to fire standard .280 Rem. ammo in it to fireform brass and then reload it yourself.
I fireform 7x57 Mauser handloads into 7x57 Ackley cases, losing about 200-250 fps muzzle velocity from the "expected" velocity of the Mauser handloads when I do so, but I still get very respectable performance from the Mauser handloads and wonderful performance from my very carefully developed Ackley handloads. (
(downThemAll), or maybe even something useful like Ghostery (ghostery. com) to alert me to the web bugs, ad networks and widgets on every page on the web - or a formfiller as good as (fireform) - or even a web developer add-on (Web Developer 1.1.8) ...