Thread: 7mm ss cs 7mm saum vs 7mmsst

Originally Posted by Beetroot

All the short magnum 7mms are better suited for use in a short action due to the shorter case length.
In a long action they are good for an additional 150-200fps.

The 284win is a very good catridge, very efficient for the powder it burns but it doesn't keep up with the magnums (which burn 10gr more powder per shot).

@Beetroot I run 62gns or powder surely the .284 is burning more than 52gns? @GWH was over 60gns with 162s from memory I suspect the 7-6.5prc is a wild cat formed from no more than lack of 7Saum brass in the USA

Originally Posted by Kelton

@Beetroot I run 62gns or powder surely the .284 is burning more than 52gns? @GWH was over 60gns with 162s from memory I suspect the 7-6.5prc is a wild cat formed from no more than lack of 7Saum brass in the USA

10gr +/-. Depending on what powder you are using the charge weight can vary a lot.
Powders like Superformance tend to fill a case more than the likes of 2209.

Originally Posted by Kelton

@Beetroot I run 62gns or powder surely the .284 is burning more than 52gns? @GWH was over 60gns with 162s from memory I suspect the 7-6.5prc is a wild cat formed from no more than lack of 7Saum brass in the USA

I'm running 55.5gr 2209 behind a 162. Hard bolt lifts start around 56gr for my rifle.

If you overlay the 7mm SAUM and 7-6.5PRC cases they are almost identical. I'm sure there are small differences, but to me they are essentially the same thing.

Originally Posted by SixtyTen

I'm running 55.5gr 2209 behind a 162. Hard bolt lifts start around 56gr for my rifle.

If you overlay the 7mm SAUM and 7-6.5PRC cases they are almost identical. I'm sure there are small differences, but to me they are essentially the same thing.

Iv not played with 2209 but im pretty sure its late 50s in the saum but @Beetroot is correct really the saums just about 10gns behind most magnums