Trim/max length - .30-.338 Win Mag

[300winnie]

Just getting ready to load up some to test and can't find much information other that you can use starting info for the .308 Norma Magnum for a reference.

It appears the Norma case is longer than a .338 Win Mag case. Is the trim/max lengths on the .30-.338 the same as the parent case?

Thanks.

[alf]

Generally, the trim length is the same as the parent case.
Sierra does show this cartridge in their manuel.
Case length is 2.50", same as the 338.
Hopefully your chamber's the same.

Al

[jmden]

When to trim

Buy and use the Sinclair Chamber Length Gauge and don't hold doggedly to the numbers in the books. Good luck.