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Well, I take load data with a grain of salt. My data with 33" barrel shows 233 grains of H50BMG gives me 2900+fps and extreme pressure :bawling:

5.45" OAL just doesnt look long enough with the A-max bullets. I measured the throat with a Stoney Point guage and I can't even seat the bullet that far out with the long throat that my Steyr has.

Experimenting I go.... :hot:
 

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I load mine to 5.630" oal. Bear in mind that this is loaded specifically for my McMillan Boomer .50 and my Grizzly LAR rifles. Both have the same throat depth and this length gives me .003 jump to the rifling in the bore.

Mike
 
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