338 Lapua powder advice

[buckmaster270]

Would like some advice on powder choice for 338 Lapua. H1000 and Retumbo are about as common as unicorns these days at least on the east coast. I looked thru my manuals and see choices include Viht N170, IMR7828, H4831. planning to load 300gr for a 1:10 twist barrel

any advice/opinions much appreciated

 

[Andy]

X-Reload has Reloder 33 and 8 lb canisters of Retumbo stock. At some point you'll want to try H1000, IMR7977 and US869 though. The three powders you mentioned are on the fast side for 300 gr bullets.

and..... http://www.canadiangunnutz.com/forum/showthread.php/1332880-Load-data-338-Lapua?highlight=lapua

 

[Kelly Timoffee]

Can always always find 7828 it seems.

However , your Hogdgon products do seem to perform better in my opinion, temp stable , and nice velocities. I settled on Retumbo.

I have wanted to try 50BMG as it always seems available but wound up having a nice load with Retumbo and never bothered.

Every time I see slow burners I buy , typically can only get 2lbs at a time.

 

[dero338]

H50BMG have worked very well for me in the past.
But now I use RETUMBO
It works best in a 30+" barrel

 

[cr5]

I use US869 with my 300gr pills but have been considering trying something else. I'm planning to load up another batch to test before deciding.

 

[Andy]

There's this too: http://www.canadiangunnutz.com/foru...gnum-Loads-with-the-285-gr-Hornady-BTHP-Match

It's for the Hornady 285 gr, so for some powders you'd need to drop the load. For H50BMG however, a full case would apply.

 

[RePete]

My preference is Retumbo. Am getting 2846fps with the 300gr SMK.

I've tried H1000
N165
RL25

Bullet preference is the Sierra 300gr MK. The 250's were good.
Hornady's 250's and 225's were just OK.

 

[buckmaster270]

Thx for all the replies. I ordered Retumbo today from X reload (thx Andy for the tip!)

 

[JonnyRossco]

I tried Retumbo in 2 seperate 338 LM's with 300gr Hybrids. The results were slightly higher velocities, but accuracy suffered when compared to H-1000. For now, I've gone with a load of H-1000, but I would like to try VN170 if I can get my hands on some.

JR