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Anyone own a 7mm 300 Win Mag?

 
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  #428  
Old 08-31-2013, 10:56 PM
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Join Date: Feb 2012
Location: eastern,wa
Posts: 436
Re: Anyone own a 7mm 300 Win Mag?

Broz,
I can now see why you wouldnt shoot that shoot....

Benchmark any day is suppose to be getting the tool to make a 8.5 twist 7 mm barre, i told them i wanted a 30" medium palma blank so i can fling the heavier some time.
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  #429  
Old 08-31-2013, 11:07 PM
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Re: Anyone own a 7mm 300 Win Mag?

So Calib, did you get the oil burned off of that AI?

I am probably going to order a Hart in 8.5 , I want to build a shorter rifle for a scabbard on the horse when chasing wolves. But I have such a hard time building light short rifles...

jeff
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  #430  
Old 08-31-2013, 11:44 PM
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Re: Anyone own a 7mm 300 Win Mag?

Jeff, you should see if Shawn would make one in a LRKM platform. Should be nice and short.
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  #431  
Old 09-01-2013, 12:35 AM
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Re: Anyone own a 7mm 300 Win Mag?

I think i did more than that, i think my round count exceeded its life expectancy.

We all know you like long heavy rifles.
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  #432  
Old 09-09-2013, 10:17 PM
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Join Date: Feb 2010
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Re: Anyone own a 7mm 300 Win Mag?

Ok, I have been following this thread since page 1, for a while now. I even copied all the print view pages into a single file so I can read it all anytime I want and I don't have to go back page by page looking for a piece of information. What can I say, I'm an engineer! I'm finally getting around to doing a build, just started working with my smith.

So it looks like some have taken the approach of stepping down in neck size using a type s 300 win bushing. Others just use a 7mm RM neck sizing die just backed out. Has anyone had any problems taking the brass down in size so fast?

I've seen most of the recipes for H1000. I've got some other powders laying around. Anyone try any loads with Reloader22? I have some that I load for 300 wby.

Godspeed.
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  #433  
Old 09-09-2013, 10:29 PM
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Join Date: Nov 2010
Location: Ashflat, AR
Posts: 371
Re: Anyone own a 7mm 300 Win Mag?

I have ran 75gr of RL25 under 150gr ballistic tips in mine just to put a few rounds down the new barrel while i'm waiting on a stock to get here so that I can do accuracy testing. I did do some pressure testing with the 180s and h1000. mine seems to have a rather short throat. i'm measuring the lands 2.880 at the ogive and jumping them .020 I maxed pressure at 76gr of h1000 and backed it down to 75gr which it seems to like pretty well considering its in a temp hacked up stock.
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  #434  
Old 09-09-2013, 11:09 PM
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Join Date: Jul 2010
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Re: Anyone own a 7mm 300 Win Mag?

Quote:
Originally Posted by jpromee View Post
Ok, I have been following this thread since page 1, for a while now. I even copied all the print view pages into a single file so I can read it all anytime I want and I don't have to go back page by page looking for a piece of information. What can I say, I'm an engineer! I'm finally getting around to doing a build, just started working with my smith.

So it looks like some have taken the approach of stepping down in neck size using a type s 300 win bushing. Others just use a 7mm RM neck sizing die just backed out. Has anyone had any problems taking the brass down in size so fast?

I've seen most of the recipes for H1000. I've got some other powders laying around. Anyone try any loads with Reloader22? I have some that I load for 300 wby.

Godspeed.
I've successfully used a backed-out 7 RM neck sizing die to perform the initial neck sizing down from 308 to 284 for my 7mm Valkyrie (7-300 WM w/37 deg shoulder & blown out case body). Works well. Just an RCBS 7 RM neck sizer.
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