Originally Posted by Mule Deer
The .338 Lapua is basically a .340 Weatherby with an extra 100 fps. ZThe case looks huge but the brass is very heavy, cutting down on powder room. It isn't a recoil terror, but for most people a brake helps--just as it does with the .340.


.338LM case: 339grs. Holds 111grs. IMR7828
.340 WBY case: 225grs. Holds 96grs. IMR7828

.338LM cases are extremely strong in the web area. The case is based on the 416 Rigby design, only beefed up to withstand a lot higher pressures.

Luck....is the residue of design...
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