H50BMG Powder for 300PRC/NM and Heavies

[Mr. F]

Im piecing together a ELR match gun and doing my homework on the 300PRC and the 300NM

It’s going to be 90% prone gun so the plan is to run a 30-32 barrel and use 230 to 250 class bullets.

Is there any reason why powders in the same class of burn rate are listed for these heavy pills but not H50BMG?

There is also large number of people reporting on loads with US869 and RL50 which are relatively slower all things being equal.

Any 30 shooters here running the H50BMG on the 300prc or NM case?

Thanks

 

[Chandalar]

I'm shooting a 300 Norma, getting 2904 in 25 1/2" barrel, 1:10 twist, with Berger 230's and 86 gr's of 50BMG with an ES of 3 FPS over a 10 shot string. RL 26, RL 33, and N570 will produce better velocities but 50BMG at .040 off the lands will always be my go to because its usually the only powder on the shelf in interior AK. This photo was a 4 shot group at 774 yards with 50 BMG, 230 Berger's

 

[badassgunworks]

Rl 26 vv565 vv170 vv570 , 8133 all better options then h50 bmg. Its too slow

 

[Mr. F]

Rl 26 vv565 vv170 vv570 , 8133 all better options then h50 bmg. Its too slow

Im looking at it as an alternative to the usual suspects.

Too slow is relative too. 28xx too slow or 29xx? Keeping in mind im running a 30”+ barrel

 

[Geno C.]

Rl50 isn’t that much slower

 

[badassgunworks]

Rl50 isn’t that much slower

I have found it to be faster the h50 bmg

 

[Dogtown]

If you can’t find the usual suspects, use Ramshot LRT. It’s easy to find, still a bit slow for these cartridges, but much better than H50.

 

[Geno C.]

I have found it to be faster the h50 bmg

Acts slower in my 375 Snipetacs and it’s bulkier too

 

[GIXXER2000]

Waiting on my 30 in 1-8.5 twist 300nm barrel and my plan is to shoot Berger 230's with either N570 or Retumbo I have both of them. I will just see what works best

 

[Taylorbok]

I have 2 lbs of 24N41 I am going to try in my 300 RUM, Main reason I've been putting it off is I can't find anymore so if it works good I'll just be sad.
How far are you planning on shooting? What matches you going to do?

 

[The D]

Mild derailment but; if it doesn’t quite work in 300 prc/norma, does it work in 338 edge?

 

[Taylorbok]

Mild derailment but; if it doesn’t quite work in 300 prc/norma, does it work in 338 edge?

It'll work in either just the thing I've heard is you can't get enough of it in the case and you will sacrifice velocity but I can't say that for a fact

 

[Allthewatts]

So I asked this same question to berger, they actually got back to me, and it's clear that it's not about the burn rate. It's about energy density. As previous posted said, it will work, but not enough case capacity.

 

[camotoe]

Dont forget rl33.

Bottom line is different barrels like different powder s

 

[blksno]

Hopefully this post isn't tooooo dead.
With Alliant cutting back powder to the US...the supply of RL33 I have and was planning to use in my 300 Norma Imp isn't going to last forever.

Im considering Ramshot LRT, VV 24N41 as well as H50BMG (RL50 if i could find it)

28" barrel and plan to only be shooting 245 and 250s after fire forming 50 cases

 

[Taylorbok]

Hopefully this post isn't tooooo dead.
With Alliant cutting back powder to the US...the supply of RL33 I have and was planning to use in my 300 Norma Imp isn't going to last forever.

Im considering Ramshot LRT, VV 24N41 as well as H50BMG (RL50 if i could find it)

28" barrel and plan to only be shooting 245 and 250s after fire forming 50 cases

I used 24N41 to fire form cases for a 375 RUM Imp and 30 Sherman Mag, it worked but it was slow as balls.

 

[Dogtown]

Don't discount N170 & N570

 

[Taylorbok]

Hopefully this post isn't tooooo dead.
With Alliant cutting back powder to the US...the supply of RL33 I have and was planning to use in my 300 Norma Imp isn't going to last forever.

Im considering Ramshot LRT, VV 24N41 as well as H50BMG (RL50 if i could find it)

28" barrel and plan to only be shooting 245 and 250s after fire forming 50 cases

Don't discount N170 & N570

That'd be my advice just run N570, some people say it's harder on throats but I haven't noticed that to bad, plus you'll get good speed. I'm guessing high volume shooting isn't a concern since you are only planning to run 50 cases so that'll help mitigate throat erosion.
N170 will work great and be less hard on throat if that is a concern of yours