808caliber
Well-Known Member
I cant imagine there will be a better option than the 7mm ss in a true short action cartridge. It almost seems like the perfect cartridge.
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7mm PRC
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Hunt11
New Member
Hi Gents,
So where does the 7SAUM fall in this conversation?
So where does the 7SAUM fall in this conversation?
A saum case(73gr)has 3-4gr more than the short prc case, but 21gr less than the long prc case(95gr). I believe the 7 Sherman short has same capacity as the saum parent.
While I give cudos to Hornady for developing the 6.5 prc and I do believe they stepped out above all of the other big manufacturers in the right direction, I prefer the saum parent case and The Sherman SS & sst that's based from the saum.
G.H.K
New Member
As I understand it, the .300 PRC was designed to be the best possible long-range cartridge that would fit in a Magnum length action. The 6.5 PRC was designed to be the best possible long-range cartridge that would fit in a short length action. So the criterion for a 7mm PRC should be to be the best possible long-range cartridge that will fit in a standard length action.
George King
George King
But both PRC's are magnum bolt face, just one short and one long. So if you made a LA standard bolt long range 7, it would be the 280 AI
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That'd be a 7blaser lol
jpndave
Well-Known Member
George King is referring to the action LENGTH, not the bolt face. I hadn't thought of it this way before but it does make sense.
Short is 308 or ~2.8" originally the 6.5 PRC is in the stretched/binderless mags SAAMI spec at 2.955" COAL
Long is 30-06 or ~3.34" originally proposed 7mm PRC length
Magnum is 375 H&H or 3.6" originally 300 PRC is SAAMI at 3.700" COAL
New Cartridge & Chamber Drawings – SAAMI
saami.org
We've stretched these boxes and added mid, super short, etc. both of the PRC are better with longer boxes to stretch their legs a bit but will work in the respective lengths.
Why would you want to limit a long range case by a shorter mag box in a long action? If it's already in a long action, why go any less than 3.6"?George King is referring to the action LENGTH, not the bolt face. I hadn't thought of it this way before but it does make sense.
Short is 308 or ~2.8" originally the 6.5 PRC is in the stretched/binderless mags SAAMI spec at 2.955" COAL
Long is 30-06 or ~3.34" originally proposed 7mm PRC length
Magnum is 375 H&H or 3.6" originally 300 PRC is SAAMI at 3.700" COAL
New Cartridge & Chamber Drawings – SAAMI
We've stretched these boxes and added mid, super short, etc. both of the PRC are better with longer boxes to stretch their legs a bit but will work in the respective lengths.
jpndave
Well-Known Member
Those longer boxes are a modern thing. Traditionally it was the lengths I listed above.
I gotcha, so would there be any reason to make a modern long range cartridge at a 3.34" saami max?
Only if it's being designed to fit a specific action. The Nosler 48 action is limited to 3.400", so that's why the 26, 27, and 28 Nosler rounds are designed for a 3.400" OAL.
Nvm please delete as Yorke posted same info
If king of 3.4" magazine was the requirement, wouldn't the saami 26/28/30 nosler be the winners? After all, noslers big ploy was super mag speeds from standard length actions. These action constraints mean little to me, as I build my rifles around the cartridge and bullets desired to shoot.
If king of 3.4" magazine was the requirement, wouldn't the saami 26/28/30 nosler be the winners? After all, noslers big ploy was super mag speeds from standard length actions. These action constraints mean little to me, as I build my rifles around the cartridge and bullets desired to shoot.
Just marketing that we need to show our wife on why we NEED a new rifle 
