H4350 and IMR 4350 loads for 338 lapua mag

[Lowholer]

I am new to the large caliber reloading world and about the only powder I have that may work or at least get me started breaking the rifle in until our powder supply comes back is H4350 and IMR 4350.Can some one give me some starting loads.I have 285 gr hornaday ELD to shoot.
Thanks Rick

 

[Cascade Hemi]

Max for both powders is around 75gr. I would probably work up from 70gr. Your loads will likely be sub 90% fill which is to say you will probably not have very good consistency or velocity. If you just need to burn some powder to break in the barrel I don't see an issue but don't expect a Christmas miracle with the results.