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Author Topic: 270 WSM  (Read 435 times)

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Offline RWK

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270 WSM
« on: July 15, 2007, 04:51:42 PM »
Can i do up a 270wsm by stubing , and will the sb2 frame be stong enough. I just pick up a short mag barrel. I think i'm going nuts i my old age. Rich
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Offline quickdtoo

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Re: 270 WSM
« Reply #1 on: July 15, 2007, 05:13:35 PM »
Nope, the frame isn't strong enough, I tried a 300WSM, didn't work, too much case head thrust. The TC Encore is stronger and it isn't strong enough.

Tim
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Offline PartsMan

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Re: 270 WSM
« Reply #2 on: July 16, 2007, 08:04:01 AM »
No
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Offline RWK

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Quick
« Reply #3 on: July 17, 2007, 07:52:17 AM »
You say reciever not strong enough, what happens, does the clearence open up at the reciever ??????.

I forgot ? is on the 270WSM. Rich
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Offline quickdtoo

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Re: 270 WSM
« Reply #4 on: July 17, 2007, 09:18:00 AM »
Yes, frame flex is one problem, underlug set back is the other. Any magnum rifle chambering, short mag or otherwise has too much case head thrust for an SB2 frame. The 270 and 300 WSMs share the same case with a case head of .555" and a SAAMI MAP  65kpsi.  I solved the underlug setback issue, but there's not much that can reasonably be done to the frame to strengthen it by us mere mortals.  ;D

Bullberry used to offer short mag barrels for the Encore, but they recalled them and quit selling them.

http://www.bullberry.com/message.html

Tim

http://www.lasc.us/SAAMIMaxPressure.htm


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