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7 wsm or 7 saum

IDhunter0990

IDhunter0990

Well-Known Member
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Joined
Sep 20, 2019
Messages
307
Location
Chubbuck Idaho
Going to build one of these two for a wife/kid rifle for bull elk hunt this fall. Can't decide on one or the other. Will be on a XM+ action so coal isn't an issue for either. Will have a 22" carbon barrel with a can on the end. I know I'm splitting hairs would like some feedback on what people have used and like.
 
Last edited:
Rick Richard said:
I just had one built in 7SAUM and waiting on delivery. Medium action and 22 inch Proof CF barrel.
Click to expand...
Lane Precison Rifles aka Dallas or Big D. She is a beauty.

image000000.jpeg
 
7 SAUM or 7SS. Remember, "medium" actions are usually an R700 SA length as described by most action builders. Usually with a 2.980" Wyatt's box or Accurate mag length. So be specific with "medium" explanations when you are ordering an action.

Unless you go to an XM 3.200", XM+, or 3.340" or longer LA. Then a 7WSM will fit much better. But still not overly long for a SAUM.
 
I built a few wsms a few years back. They've been awesome. They keep up with the new PRC with similar barrel length based on what I'm seeing reporting.

I don't own a SAUM but suspect it will get within 100fps or so as well.

Concur that brass is tough. I've gobbled up 400-500 pieces though and think it will last me a decade at least.

If you want to go wsm, buy brass first. Only manufactured I know of currently is Bertram.

For ref. Both of mine are fed from SA magazines at about 2.96 OAL w/175eldx. One is a tikka, the other a SA savage.

Tikka with a 20" C6 barrel shoots 2900fps without signs of pressure. Savage with 23" C6 shoots 2975.
 
lancetkenyon said:
7 SAUM or 7SS. Remember, "medium" actions are usually an R700 SA length as described by most action builders. Usually with a 2.980" Wyatt's box or Accurate mag length. So be specific with "medium" explanations when you are ordering an action.

Unless you go to an XM 3.200", XM+, or 3.340" or longer LA. Then a 7WSM will fit much better. But still not overly long for a SAUM.
Click to expand...
Edited it is is a Xm length action. Thanks for keeping me inline! 😂
 
I went through this a couple years ago and wound up with the SAUM, and not to muddy the waters but If I had to do it again I'd do a 7-300wsm for a bit more case capacity and the 300wsm brass is available from ADG.
7 wsm case is a touch longer than the 300 wsm but I'm not sure why ADG never made it, now that the 7 prc is here we'll likely never see it.
 
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