04-15-2023, 12:04 PM
The bolt face diameter for 5.56 is .384 which leaves adequate wall thickness for the locking lugs to handle 62K of pressure.
To fit a larger diameter case into the same action, the bolt face diameter is increased to .445 All other things remaining the same, that equates to removing .06 of very high strength steel supporting the locking lugs from breaking/shearing off.
As for Hornady factory ammo not a clue, neither of my barrels have seen a factory made round.
Never tried the stuff myself, but my guess would be LeverRevolution or some proprietary derivative. On paper at least, it should give about 100fps more before hitting top pressure again.
To fit a larger diameter case into the same action, the bolt face diameter is increased to .445 All other things remaining the same, that equates to removing .06 of very high strength steel supporting the locking lugs from breaking/shearing off.
As for Hornady factory ammo not a clue, neither of my barrels have seen a factory made round.
Never tried the stuff myself, but my guess would be LeverRevolution or some proprietary derivative. On paper at least, it should give about 100fps more before hitting top pressure again.
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