Powder for 303 and 338WM?

[mistahmojoryan]

I'm new to reloading and have a Ruger No. 1 303 and a 338Win Mag. I already have RL 15 for the 303. Can I use that for the 338, and if so, where can I find good load data? Could you suggest another powder I can use b/t them? I was thinking H4350 but then that may be more appropriate for the 338. Little help; thanks!

 

[Eagleye]

RL 15 is about perfect for the 303, but a bit on the "Quick" side for the 338.
Reloder 19 is a far better choice with your 338.
For your Ruger #1 in 303, just use 308 Winchester data for that RL 15.
The 338 will have plenty of data available from numerous sources.
PM me if you want more info. Regards, Eagleye.

 

[Andy]

I can't think of better choices than H4350 or RL17 to complement the RL15 for use in both 303 Brit and the 338 WM.

 

[mistahmojoryan]

So, if I'm reading you both right, stick with the RL15 for the 303 (using 308 load data) and pick up something a bit slower for the 338WM?

 

[mooboy76]

never mind, I can't read apparently

 

[Lefty Dick]

Do you own a reloading manual?

Your answer is there.

 

[mistahmojoryan]

True enough but I enjoy the discussion and helpful pm's.

 

[Ganderite]

If you wanted a powder to use in both calibers, 4350 would be an excellent choice, so long as the 303 was with 174 or heavier bullets. For lighter 303 bulllets, the RL15 would be much better.