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Discussion Starter · #81 ·
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....
 

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Discussion Starter · #82 ·
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..
 

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Discussion Starter · #83 ·
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..
 

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Discussion Starter · #84 ·
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.

Here is comparison of Montana PH to Pierce action we
modified to use for rebated rim 416 HSM testing..Ed.
 

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Discussion Starter · #85 ·
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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Discussion Starter · #86 ·
Here is picture of my 416 HSM test gun,... It is a big falling block we had
as a 8 bore years ago. Has a 34 inch , 1 5/8 "diameter, 1 to 10 twist barrel. .. Ed.


 
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