.338-378 WBY Best Loads

[The_Shooter]

Hey Folks,

I have a custom .338-378 Wby and I was wondering if you guys could share some of your best loads.

I have been using the 200 grainNosler BT, however, would like to move upto the 250 -300 grain area.

 

[The_Shooter]

Nobody out there own one?

 

[Andy]

Here's a good place to look:

http://data.hodgdon.com/cartridge_load.asp

 

[204saskman]

my buddy owns one. Was trying to find some info. I personally dont know why he bought such a caliber. He uses it for a hunting rifle.Let me know if you find anything out as he wants me to reload some for him and as i dont think he wants to keep buying factory ammo at 140/box

 

[pockets]

I haven't loaded for one, but being similar to the 338 lapua, I would use Retumbo or H1000, and barnes 250 TSX. 215M or CCI250 primers.

 

[dan belisle]

250 gr A frame bullet, 107 gr of RL25, 275 gr A frame bullet, 103 gr of RL25. I have some data here somewhere using Sierra 300 gr bullets, but I can't seem to find those sheets. Sigh. Organization is the key, right? - dan

 

[350 Mag]

Try this page...

http://www.reloadersnest.com/frontpage.asp?CaliberID=313


http://www.reloadersnest.com/query_all.asp?CaliberID=313

 

[MTM]

I used the 210 TSX in front of 115 grs. Rel 25 for 3400+. Shot some heavier stuff but not enough to post any solid data.