Home Forums Hunting & Shooting Ask The Gunwriters Are there practical reasons to own a .300 H&H?

Yes. And all of the improved cartridges that Ellwood developed from the 303 British had 35 degree shoulders. Ellwood and Parker Ackley used to write back and forth, comparing notes. Some of their correspondence was about improving various cartridges. Ackley originally used the 35 degree shoulder angle, but switched to 40 degrees, Ellwood used the 35 degree angle and stuck with it. Ellwood developed ten improved cartridges based on the 303 British case.

There are often feeding problems that result from changing the shoulder and decreasing the body taper. People like Ackley and Epps were experimenters and in some ways helped advance mainstream cartridge development.