Originally Posted by Spotshooter
Hey I was looking at the Federal website and it says that the new Sako 370 Mag is a 9.3x 06... aka a 06 case necked up to 9.3!


No, the new 9.3x66 Sako / .370 Sako Magnum cartridge is in-between the existing 9.3x62 and 9.3x64 Brenneke but not by much. It is more like an updated version of the 9.3x64 Brenneke.

Here is a ballistic comparison of the 9.3x66 Sako, 9.3x62, 9.3x64 Brenneke, and the 35 Whelen.

.370 Sako Magnum / Federal Premium / 286 grain Nosler Partition
Velocity in Feet Per Second
Muzzle 100 200 300 400 500
2550 2371 2200 2036 1878 1731
Energy in Foot Pounds
Muzzle 100 200 300 400 500
4129 3571 3074 2632 2241 1902

9.3x62 Mauser / Norma factory Ammo / 285 grain bullet
Velocity in Feet Per Second
Muzzle 100 200 300
2362 2143 1937 1743
Energy in Foot Pounds
Muzzle 100 200 300
3532 2908 2375 1924

9.3x64 Brenneke / Handload / 286 grain Nosler Partition
Velocity in Feet Per Second
Muzzle 100 200 300
2600 2395 2223 2058
Energy in Foot Pounds
Muzzle 100 200 300
4294 3659 3074 2541

35 Whelen / Remington Express / 250 Pointed Soft Point
Velocity in Feet Per Second
Muzzle 100 200 300 400 500
2400 2197 2005 1823 1652 1496
Energy in Foot Pounds
Muzzle 100 200 300 400 500
3197 2680 2230 1844 1515 1242

The Sako will cost about $1,500 and a box of factory ammo will cost about $85.
And from the looks of it the .370 Sako Magnum does not have much of a shoulder to headspace on.
So, I don�t think I�ll be buying one. Besides I have a CZ 550 FS in 9.3x62 on order.

But of course I have been wrong before.