Ridge_Runner
Handloader
- Sep 29, 2006
- 1,394
- 760
The Gibbs is an awesome round, but knowing what I know now if doing it again I'd go 6.5/06 AI instead, much, much simpler to make brass, to give you an ideahere are the steps to forming gibbs brass
1) size 270 cases to a crush fit
2)prime
3) now either use 11 gr unique/cornmeal/plug with tp or load up a moderate load with a bullet and fire
then load normaly
6.5/06 AI
1) prime new 25/06 cases, champher, charge with a moderate load for the 6.5/06, seat any 264 boatail
2) fire, out pops a perfectly formed 6.5/06 ai case
now, the gibbs at least mine, doesn't get great accuracy firforming with bullets, and pushing the shoulder foreward will split the shoulders of around 2% of the brass upon fireforming, eith with bullets or cornmeal. Just the shoulder angle change on the AI doesn't hinder accuracy much so you can effectively hunt with firform loads in the AI.
So knowing this if I were doing another 6.5 based on the '06 case I would go with a button rifled around 28-30" and use lapua 30/06 brass and probably more than make up the 100-150 fps advantage the gibbs has over the AI.
RR
1) size 270 cases to a crush fit
2)prime
3) now either use 11 gr unique/cornmeal/plug with tp or load up a moderate load with a bullet and fire
then load normaly
6.5/06 AI
1) prime new 25/06 cases, champher, charge with a moderate load for the 6.5/06, seat any 264 boatail
2) fire, out pops a perfectly formed 6.5/06 ai case
now, the gibbs at least mine, doesn't get great accuracy firforming with bullets, and pushing the shoulder foreward will split the shoulders of around 2% of the brass upon fireforming, eith with bullets or cornmeal. Just the shoulder angle change on the AI doesn't hinder accuracy much so you can effectively hunt with firform loads in the AI.
So knowing this if I were doing another 6.5 based on the '06 case I would go with a button rifled around 28-30" and use lapua 30/06 brass and probably more than make up the 100-150 fps advantage the gibbs has over the AI.
RR