HMX1
HMX1
1 post
Joined December 2016

Best .308 powder for accurate measurements?

Which .308 powder meters the most accurate out of the xl650? After reading and reading multiple posts and threads on numerous boards I have given up. I would only ASSume stick powder like H4895 would bridge in the throw. Correct? The load will be for a 20 inch gasser. I will be using LC brass, cci 200 poppers and Hornady Match 168 grian pills. I already use H4895 for my Remington 700 hand loads (RCBS Rock Chucker) and would really like to stay with just one powder if I could.
Thanks, Tim
Bucolic_Buffalo
Bucolic_Buffalo
62 posts
Joined June 2016

RE: Best .308 powder for accurate measurements?

Here are a couple good threads where the Dillon folks give good advice.

https://www.dillonprecision.com/inconsistent-poweder-charges-and-leaking-powder_350_11_3827.htm

https://www.dillonprecision.com/metering_350_11_3863.htm

Basically, slow down when using stick powders. Then slow down again.
dillon
Administrator
dillon
2,964 posts
Joined July 2007

RE: Best .308 powder for accurate measurements?

Both IMR and H4895 meter reasonably well into a 308 case, as the funnel hole is large enough that bridging is very infrequent if you work the handle a bit slower. Due to powder cutting, expect a variation of +/- .2-.3 grain is all.
As an alternative, AA2520 is a popular choice, and the short-grained extruded powders such as Varget and the Alliant ReLoader series powders meter very well, almost as good as ball powders.
jeffkruszewski
jeffkruszewski
1 post
Joined January 2013

RE: Best .308 powder for accurate measurements?

I use Hogdon CFE 223. No Issues,great speed and accuracy.
milostew
milostew
4 posts
Joined May 2015

RE: Best .308 powder for accurate measurements?

I have loaded 6000 + rounds of .308. Of the 14 or so rifle powders I have used, Varget is by far the worst, TAC is the best as far as metering. I find TAC to be accurate as well.