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 Opinions on IMR 4756 for Multiple Calibers?
ricklaut  [Member]
8/6/2011 4:05:02 AM EST
When starting out reloading for pistol, I looked for one powder that I could use across the multiple calibers that I shoot (9mm, .40 S&W and .38/.357) and tried IMR 4756. So far, I've been satisfied... it's done what I wanted (for basically plinking). It's accurate, not dirty... I've never really pushed max loads with it. Now, I'm about to start for .45 ACP - and I'm finding loads using IMR 4756 for that too.

I know there are many other powders I could be using for the above calibers... but what are others' experiences with IMR 4756? Am I really missing out by using it instead of something else, or should I continue down this path?
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dryflash3  [Moderator]
8/6/2011 1:23:42 PM EST
I have never used this powder.

Doesn't look look anyone else does either.

If it works for you, keep using it.

I'm guessing it's a flake powder?
ricklaut  [Member]
8/6/2011 2:24:14 PM EST
It is - it seems to measure consistently through my RCBS Uniflow... Fills up a 9mm / 40 enough so that you'd be hard pressed to double charge.

I kinda feel like I'm missing out by not trying all of the other powders others are using, but on the other hand - like you said - it works so I'll likely keep on using it (and test it out in .45).
308Sako  [Member]
8/11/2011 6:31:26 PM EST
Riclaut, I've been using this powder for nearly 30 years, mainly for .38/.357 loads, and it is a great powder below maximum loads. Pressure spikes can get severe near top loads.

Velocity is also however incredible, why I can't give it up! 45 ACP works very well with it.

It is an excellent powder for magnum 20Ga shotshells too!
dryflash3  [Moderator]
8/11/2011 6:59:57 PM EST


Another option is True Blue. Works great in 9mm, and 45 ACP. I don't load 40, but plenty of loads are listed.



True Blue is a great measuring ball powder.
ricklaut  [Member]
8/13/2011 10:00:38 AM EST
Originally Posted By 308Sako:
Riclaut, I've been using this powder for nearly 30 years, mainly for .38/.357 loads, and it is a great powder below maximum loads. Pressure spikes can get severe near top loads.

Velocity is also however incredible, why I can't give it up! 45 ACP works very well with it.

It is an excellent powder for magnum 20Ga shotshells too!


Good to know - thanks!
ricklaut  [Member]
8/13/2011 10:01:51 AM EST
Originally Posted By dryflash3:

Another option is True Blue. Works great in 9mm, and 45 ACP. I don't load 40, but plenty of loads are listed.

True Blue is a great measuring ball powder.


I put it on my list to try when I'm ready to try some new powders. Thanks!

1911smith  [Team Member]
8/13/2011 10:03:04 AM EST
I use it in 357sig and 45acp. It works well in 9mm and .40S&W.

It's not my go to powder but it certainly is a good powder.
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