Which Powder for 208 AMAX in 300 Win?

[jammer300]

I have had the best luck with IMR 7828SSC. I have a Savage 111 in 300 winmag, 1:10 twist, 24" barrel. WLRM primers, Federal brass, 69.8gr IMR 7828SSC and the 208gr A-MAX give me about 2800fps and sub MOA groups

 

[FEENIX]

I have had the best luck with IMR 7828SSC. I have a Savage 111 in 300 winmag, 1:10 twist, 24" barrel. WLRM primers, Federal brass, 69.8gr IMR 7828SSC and the 208gr A-MAX give me about 2800fps and sub MOA groups

I was getting ~100 FPS less @ 70g of IMR 7828SSC with my Savage 111F also 1:10" and 24" barrel.

The chart I provided in #14 if off 25" barrel 1:10" WLRM and Hornady Frontier brass

 

[TORCHRIDER]

Well, I've got a new 8 lb. jug of H1000 sitting here and am now wondering if it is worth trying given that it does not seem to be that popular in the 300 Win Mag. I don't load any other magnums. Maybe I ought to sell it and buy some IMR7828?

 

[Barrelnut]

Well, I've got a new 8 lb. jug of H1000 sitting here and am now wondering if it is worth trying given that it does not seem to be that popular in the 300 Win Mag. I don't load any other magnums. Maybe I ought to sell it and buy some IMR7828?

IMHO don't sell it until you verify that 7828 really works for you. H1000 is hard to find, you will have no trouble selling it if and when you decide.

 

[MudRunner2005]

I agree. You might want to see if the other powders are going to produce the results you are looking for first. An 8lb. jug of H1000 would command a premium price in the days of powder drought...

 

[Tabascoman79]

H1000 is a great powder for that class bullet in the 300wm! It likes heavy loads, not light stuff. start a load develop enemy about 2gr off book max and work till you see pressure. Itll "probably" be over book max a grain or so. Load it to your rifle, not a book.

 

[brentc]

That 8 lb bottle of H1000 is useless. I'll volunteer to properly dispose of it for you.

Seriously, though. You have the holy grail of 300 WM powders. H1000 is about as perfect of a powder as you can get for the 300 WM and it's the go-to powder for all around performance with heavy bullets in the 300 WM. Develop a load and run the snot out it. The accuracy node for H1000 and the 208 is right around 77.5 grains with a Fed 215 in Win brass. You may want to try some different primers and tune for seating depth, but this will get you close. Work up to it.

 

[MagnumManiac]

With the shorter barrel you may find that H4831 may prove to better than the slowest powders that longer barrels run well with. The 4955 is the enduron closest to H4831 as far as the burn rate/ pressure/velocity.

Completely incorrect, whatever burn rate gets the highest velocity in a long barrel will also be the one that produces the higher velocities in a shorter barrel.
The myth that shorter barrels require faster powders continues, it is untrue.

lightbulb

 

[Capt RB]

Completely incorrect, whatever burn rate gets the highest velocity in a long barrel will also be the one that produces the higher velocities in a shorter barrel.
The myth that shorter barrels require faster powders continues, it is untrue.

lightbulb

Fastest may not always be best when it comes to accuracy and consistency. That being said both H1000 and 7828 have proven to be what should work in a 300wm with heavy bullets

 

[MudRunner2005]

Fastest may not always be best when it comes to accuracy and consistency. That being said both H1000 and 7828 have proven to be what should work in a 300wm with heavy bullets

7828/7828 SSC has proven itself to me time and time again in everything from a .25-06 AI up to a .300 Ackley, and everything in between. So, to me, it truly is the most universal powder for heavy-for-caliber bullets in just about any long action cartridge.

 

[Michael Eichele]

Completely incorrect, whatever burn rate gets the highest velocity in a long barrel will also be the one that produces the higher velocities in a shorter barrel.
The myth that shorter barrels require faster powders continues, it is untrue.

lightbulb

"Require", no.

Short barrels and slower powders DO make for more muzzle blast. In some instances, un-burned powder may exit the barrel.

There are no hard and fast rules as there are A LOT of variables at play but in more extreme cases, shorter barrels do better with faster powders.

 

[MagnumManiac]

Fastest may not always be best when it comes to accuracy and consistency. That being said both H1000 and 7828 have proven to be what should work in a 300wm with heavy bullets

Who said fastest was best?
The mear fact that you stated the above shows you don't like being wrong, sorry, can't help with that.

 

[MagnumManiac]

"Require", no.

Short barrels and slower powders DO make for more muzzle blast. In some instances, un-burned powder may exit the barrel.

There are no hard and fast rules as there are A LOT of variables at play but in more extreme cases, shorter barrels do better with faster powders.

Please provide the PROOF that un-burned powder exits the barrel.
What does, "shorter barrels do BETTER with faster powders" mean?

Muzzle blast has NOTHING to do with cartridge performance, which is what we are discussing.

 

[Michael Eichele]

Please provide the PROOF that un-burned powder exits the barrel.
What does, "shorter barrels do BETTER with faster powders" mean?

Muzzle blast has NOTHING to do with cartridge performance, which is what we are discussing.

I challenge you to prove it to yourself. Load up some H50bmg in a 24" 30-06 and shoot through some cardboard at 15'. Heck, do it with a 24" 300 win. Or better yet, do it with a 22" 30-378. You'll find powder kernels stuck in the cardboard. Pretty sure a faster powder would do "BETTER" in all of those scenarios.

What does "shorter barrels do BETTER with faster powders" mean to you?

I assure you that while H4350 gives me the highest velocities with 178-190 grain bullets in my 26 and 28" 308s, it won't give me the fastest velocities in my 20", period. VARGET works better in them.

Take it how ever you wish. You jumping on everybody here isn't going to prove anything or help you prove anything positive.