12GA Rifle From Hell

Here is print with chamber reamer specs for the
416 HSM chamber..There are 3 base sizes we have,
depending on actions used. Got reamers for all 3..
Got cases for all of them..
Our cases are public domain, so that is why I post
info and specs. Manson makes reamers I use,,, Ed.
416hsmream.jpg
 
Here is reamer print with chamber reamer specs for
the 460 HSM chamber .Couple guys getting set
to do 38-40 inch heavy 458 target barrels...Ed....
460hsmream.jpg
 
If anyone is working on a 12 gauge, I have the 3.5" chamber reamer for the rifled 12 gauge barrel, and I'm willing to rent/loan-trade.
 
Thanks mike....

With 40 inch barrel 416 HSM ,475 gr, get 3650, over 13,000 ft lbs muzzle energy.
Got guys getting set to have 38-40 inch 458 barrels made for 460 HSM.Ed..
 
More info on this gun, we did it for testing 416 HSM with a rebated rim,
to check in intermediate size actions, with the longer, stronger, bolt lugs, Ed..
intertargetp.jpg
 
Here is experimental action for 416 HSM in a heavy
stock....We lengthened port a little, set bolt stop back ,
opened bolt face fit the 416 HSM rebated rim. Ed.
intertarget.jpg

Here is comparison of Montana PH to Pierce action we
modified to use for rebated rim 416 HSM testing..Ed.
intermediates.jpg
 
416 & 460 HE AND 416 & 460 HSM .LONG RANGE AND HUNTING
Can be set up in  Pierce  X10  ACTION for the 416 & 460 HE  
AND X20 action for the 416 & 460 HSM , Can get those
if guys need one...Ed
 
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