Heym make a 450NE.
Is this the 450-3 1/4" or the 450No.2?
Which one is the more popular?

ozhunter

The Heym is a 450NE 3 1/4", but they might do a 450#2 NE for you if you want! The only difference between them is the 450#2 NE is a little lower pressure, but balisticly they are twins! The Heym is pleanty strong, so there is no worries about the difference in pressure!

there were far more 450 straight made than the 450 # 2 which was a late comer.

both are excellent cartridges.

the 450 straight allows building a slimmer rifle, if the maker is capable . some are not and use one action size to fit all.

Ozhunter,

I understand that finding 450NE 3 1/4" brass is a whole lot easier and cheaper than finding the No2 variety.

If anyone is looking at a rechamber from a 458, the 3 1/4" is the choice since the case is just large enough to clean up a 458 chamber and it leaves maximum steel.

And Tomo is right about there being many more 3 1/4" rifles made.

Kynoch shows a 25fps difference with the 450 No2 ahead, both with a 480gr bullet.

JPK

Thanks for your replies guys. It sounds like the 450NE3 1/4" would be the way to go.
Regards,
Adam.

oz hunter
you should be able to find an original 450 x 3 1/4 in your country. i would guess a lot of them came out of "inja" at the end of the raj.

contact the big bore rifle club of australia too