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

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 Beetroot

If I were doing a short action 7mm it'd be a 7mm-6.5PRC.
Hornady and Lapua brass being the main reasons, just size up neck with a mandrel and away you go.

Hornady brass is junk and ADG goes as good as lapua be intrested to see the 7mm velocity though cant imagen itll anything flash

Originally Posted by Kelton

Hornady brass is junk and ADG goes as good as lapua be intrested to see the 7mm velocity though cant imagen itll anything flash

7-6.5PRC is becoming very popular in F-Class circles….2950fps with 180 Hybrids comfortably with 30” barrel and without needing to push it hard. Achieves 284 Shehane performance without trashing brass.

Originally Posted by gqhoon

7-6.5PRC is becoming very popular in F-Class circles….2950fps with 180 Hybrids comfortably with 30” barrel and without needing to push it hard. Achieves 284 Shehane performance without trashing brass.

30" that's almost 2 barrels welded together

Sent from my CPH2145 using Tapatalk

Originally Posted by gqhoon

7-6.5PRC is becoming very popular in F-Class circles….2950fps with 180 Hybrids comfortably with 30” barrel and without needing to push it hard. Achieves 284 Shehane performance without trashing brass.

Thats a blimen long barrel would it be fair to then deduct 30fps per inch from 30" to 20" and assume a loss of 300fps so 2650fps? Even at 20fps per inch 2750fps. Is the shehan an improved 284win?

Originally Posted by Kelton

Thats a blimen long barrel would it be fair to then deduct 30fps per inch from 30" to 20" and assume a loss of 300fps so 2650fps? Even at 20fps per inch 2750fps. Is the shehan an improved 284win?

Shehane isn’t AI ‘improved’. Just has less body taper compared to standard 284W and increases powder capacity by about 3grains or so. 7-6.5PRC has similar capacity, but just does the same job easier.

Originally Posted by Kelton

Hornady brass is junk and ADG goes as good as lapua be intrested to see the 7mm velocity though cant imagen itll anything flash

Hornady brass is the best "cheap" brass IMO.
I like using it when loosing brass is a possibility, as I hate loosing expensive brass.

Originally Posted by Beetroot

Hornady brass is the best "cheap" brass IMO.
I like using it when loosing brass is a possibility, as I hate loosing expensive brass.

Fair I loose alot of brass but wont endure Hornady I prefer Winchester if not ADG or Lapua dont like Norma either i have used limited Sako but seems good I try my best but still loose cases, my reference is the same powder

I have a box of 50 new adg 7mm saum brass also!

I have a short Saum wildcat described in page 4 in here wildcat appreciation thread.

It's a fair bit of work to get underway, and you need good quality soft brass. I agree with previous posters that if you have a short action where you can seat out to he lands from mag-loaded rounds then sticking with the Saum would be the go. Something like a rem 700 short action with a wyatt mag box might do it.

I'm going to build a second saum as I love caliber. I'm thinking it needs to be different to my standard long range dial up saum so might run monos with a small bdc style scope.
Probably hammer hunter 143s and Barnes lrx 145 that I have on the shelf

Isn't a .284 not a short action?

Adg hands down, hornady is average, norma is extremely soft. Bertram has been pretty good also on my experience.