We realized that one of the advantages to our core technology was we can soften the core without seeing a decrease in initial velocity rates,
2.
In practice, " dram " equivalence today most commonly equates just to a velocity rating equivalence in fps ( feet-per-second ), while assuming lead shot.
3.
Hornady has since developed the copper-clad steel-encased bonded core DGX and DGS bullets rated for a velocity of . to coincide with the velocity rating of the tougher DGS and DGS bullets.
4.
It has a plain bearing pressure rating ( P ) of; dry velocity rating ( V ) of 140 surface feet per minute ( sfm ) ( 0.71 m / s ); and a PV rating of 10, 000 psi sfm ( 0.35 MPa m / s ).
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