Matt314 Posted August 22, 2011 Report Share Posted August 22, 2011 Hey guys just came across this forum and had to join. I currantly own a dpms lr308, and it has become my favorite rifle. However lately I have been thinking of building a 7mm saum upper but I am having trouble finding a magnum bolt and somone to chamber a barrel for me wondering if anyone here has any helpful information for me. Quote Link to comment Share on other sites More sharing options...
tlcoy1911 Posted December 21, 2011 Report Share Posted December 21, 2011 I'm in the process of finding the parts to build a 300 WSM.Ordered a JP bolt, but it is backordered so I am on hold for now.I will machine the bolt to fit the rim, then fit the bolt to the barrel extention, then fit the ext to the barrel.The barrel is a new Rem 700 take off, so the chamber is already done, I just have to set the headspace when I fit the ext to the barrel.I'll post more when I'm working on it Quote Link to comment Share on other sites More sharing options...
98Z5V Posted December 21, 2011 Report Share Posted December 21, 2011 This is going to be incredibly cool. <thumbsup> Quote Link to comment Share on other sites More sharing options...
unforgiven Posted December 21, 2011 Report Share Posted December 21, 2011 Welcome from the midwest brother Matt hope the weather isn't beaten you up to bad.Shoot on bro. Quote Link to comment Share on other sites More sharing options...
planeflyer21 Posted December 21, 2011 Report Share Posted December 21, 2011 Glad to meet you Matt!Welcome!Jon Quote Link to comment Share on other sites More sharing options...
MikedaddyH Posted December 26, 2011 Report Share Posted December 26, 2011 Hi, I am doing a 270 wsm and 300 wsm AR project. I have a Win 70 barrel which has been machined, threaded barrel extension installed. Its looks great and would be ready to shoot but, only in a single fire shooting scenario. There is more metal around the bolt head than a bolt action rifle but the rifle barrel is to thin to sustain rapid firing. I have discussed this with 3 gunsmiths and 2 told me not to use the barrel. I have 2 barrel blanks that will be machined to an AR barrel profile, this will/should increase the strength. I have 2 rifles complete minus the barrels. Just want to stress the safety factor , magnum rifle cases can have 60 to 78 grains of powder exploding inches from your face! That Rem 700 barrel may not be the answer , yes it will work but more metal will be better. I looked at a Armalite 300SAUM AR and this was the gun which gave me my inspiration. Camo'ed out with a 10 round mag.Mike H Quote Link to comment Share on other sites More sharing options...
Matt.Cross Posted December 26, 2011 Report Share Posted December 26, 2011 Hey guys just came across this forum and had to join. I currantly own a dpms lr308, and it has become my favorite rifle. However lately I have been thinking of building a 7mm saum upper but I am having trouble finding a magnum bolt and somone to chamber a barrel for me wondering if anyone here has any helpful information for me.There are several companies who make custom AR-10 style barrels, most of them will offer any chambering you like. I'd say your biggest obstacle will be finding a suitable bolt. Quote Link to comment Share on other sites More sharing options...
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