Australian Stalker cartridges. Spoke with them the other day,they claim pressures not exceeding around 46000 PSI for all of them. Load lengths 2.90" max.

375: 270gn@2600,300gn@2475,350gn@2300.
416: 350gn@2300,400gn@2150.
458: 400gn@2200,500gn@1980
Stated that charge of for .375/350gnWoodleigh is 70gns/W760.

I am not convinced pressures are that low?

VERY old news...

rick jamison did these about 7 years ago. using the 404 case... which was generally 4gr h2o less than capacity the 2.5" magnum cases..

he went from 25 to 458.. matched basically everything,, 264 win, 7rem, 300HH, 358 norma, 375 taylor, 416 taylor and 458 winmag.

jeffe

BE it old news or new,

does a maximum 46000psi for any of them seem like a realistic claim? Considering that most medium bore short mags operate around 60Kpsi or above.

assuming 24" barrel...
and since it's oz, woodleigh bullets

quickload projected results for the jamison line

46000 PSI
375 - 300gr woodliegh
2377fps

416 - 410gr wood
2121 fps

458 - 500gr woodleigh
1979 fps

Do i believe it? sure... +/- 5%

jeffe

quote:

Originally posted by Woodjack:
BE it old news or new,

does a maximum 46000psi for any of them seem like a realistic claim? Considering that most medium bore short mags operate around 60Kpsi or above.

Agreed...it's hard to believe anyone would stop at 46,000 PSI