In reply to:
The .435 PH Express is based on the .375 H&H case. Necking it up to .435 not only makes a practical, efficient round, it also delivers good useable field ballistics without the very high pressures of the .416 Remington. The .435 PH Express can launch a 450 grain bullet at 2,250 FPS, giving us 5,060 Foot Lbs. of energy, and 62.9 Taylor Knockout Value. A 450 grain bullet in .435 caliber has a Sectional Density of .340!
Is this fellow living in complete and total isolation from cartridge developments starting with the .404 Jeffery in 1910?
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Re: New Big Bore, the .435 PH Express