common powder for use in .338LM and .308Win. ?

[buggz]

Hello,

What is your prefered common powder you use for both .338 Lapua Mag and .308 Winchester ?

If it matters, I will also be trying to produce a common .308 load for Remington PSS bolt, Seekins SP10 AR10, and Springfield Super Nat. Match M1A guns.
I don't know how doable this last part will be...

 

[DIBBS]

It's Very very unlikely that you will find a powder that will be ideal in both calibers.

A multitude of powders work extremely well in the 308... it's easy to load for.

H1000, VVN-570, RL-33, and powders of similar burn rate work well in the 338.

.308 Winchester

Yes, it came with Magpul AICS style mags that allowed a max oal 2.820. I purchased the Alpha mags and like them a lot better than the plastic Magpul's. There's still a website, but I don't believe they're in business any longer: https://alphaindmfg.com/products.html Cool, thanks. Their...

www.snipershide.com

 

[MK20]

Get one for 338 and then get 4064 for 308.

 

[buggz]

Thanks!
I am a newbie, so, trying to get by with as little I can to start with.
I am understanding there isn't a common ground between the two.

Thanks again for the schooling...

 

[SierraCJ5]

...help, what's the best common tire size for my F550 and my '67 VW bus?

As stated, you need two different powders.

 

[Steel head]

Good luck with that.
Two cartridges with quite different powder needs.

 

[Brettmparker1]

Yah very different burn rates for both.

 

[XLR308]

Thanks!
I am a newbie, so, trying to get by with as little I can to start with.
I am understanding there isn't a common ground between the two.

Thanks again for the schooling...

Dont compromise on either feed them what they like.
Varget, AR-Comp, 4064 will all do great in the 308win.
Cant help with the 338L but a guess would be H1000 it is an exceptionally good powder in 300wm and very stable in regards to temp stability.

 

[Supersubes]

Thanks!
I am a newbie, so, trying to get by with as little I can to start with.
I am understanding there isn't a common ground between the two.

Thanks again for the schooling...

Download hodgdons burn rate chart and print it out. With that in hand, search for load data and note where on the burn rate chart various cartridges lie, how it shifts with bullet weight, etc. In your case, h414 is about as fast a burn rate as you’ll find for the Lapua, with a 160 gr bullet(total waste of time). In a 308, you’ll need a very heavy bullet and near 50 grains of h414 to make it work. So while theres technically overlap, theres no meaningful overlap.