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WHICH POWDER IS BETTER IMR PB OR UNIQUE? Login/Join 
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Hey guys, I'm new to reloading and about to begin my first load of 124 gr 9mm. When I bought my Dillion 550B, the guy I bought it from gave me 2 pistol powders, one container of IMR PB, and another of Unique. Which powder would be better? and should I go with first? I know not to mix the powders...Ever ...A little back ground info..I shoot in action matches from time to time, and would be shooting a Sig 226 SSE or a Sig 229 SSE...I would like good accuracy out to 25 yards, or more......Thx

This message has been edited. Last edited by: STYLUS_407,
 
Posts: 19 | Location: Central Florida | Registered: August 25, 2010Reply With QuoteReport This Post
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Unique is a classic for pistol rounds in that range of power. I have used a lot of it in .38 and .45ACP, and even in lighter .357 magnum loads. (There are better choices for the heaviest .357 loads.) You can't go wrong with Unique. The newer formulation is supposed to be a little cleaner burning. I haven't used the new stuff because I still have some from the older formulation, but I never thought Unique was too dirty. A little more dirty than some, but not excessively so.

I haven't used IMR PB. I read one comment that it didn't meter as well for the light charges you would use in 9mm. That could be powder meter specific though. It also seems to be a little more expensive than most comparable powders. Since you have some for free, I am sure it will make some shootable rounds. People like it for .38 Special too. Like Unique, it was designed for shotguns, but works well in lower pressure pistol rounds.

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Posts: 42763 | Location: Texas | Registered: February 10, 2004Reply With QuoteReport This Post
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New guy, go with the Unique. PB is pretty fast, IMO not for anything but 9mm minor.


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Posts: 7567 | Location: ca, usa | Registered: February 17, 2004Reply With QuoteReport This Post
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Cool thx, I'll go with the Unique until it runs out. Then use the IMR PB for target loads. Then get more Unique.
 
Posts: 19 | Location: Central Florida | Registered: August 25, 2010Reply With QuoteReport This Post
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quote:
Originally posted by STYLUS_407:
Cool thx, I'll go with the Unique until it runs out. Then use the IMR PB for target loads. Then get more Unique.


I think 231/HP38 meters much better than Unique, might want to try it as well. It's nice having options.


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Posts: 2488 | Location: Winston-Salem, N.C. | Registered: May 30, 2005Reply With QuoteReport This Post
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Unique is a good pistol powder to start with. It is hard to fit a double charge in most cases.
I have shot thousands of round loaded with it.
It seems to meter well in my Dillion powder measurer .
 
Posts: 253 | Location: NH | Registered: March 29, 2005Reply With QuoteReport This Post
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Originally posted by STYLUS_407:
Then get more Unique.

Good luck with that.

Big Grin


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Posts: 11991 | Location: Montana | Registered: November 01, 2010Reply With QuoteReport This Post
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quote:
Originally posted by Gustofer:
quote:
Originally posted by STYLUS_407:
Then get more Unique.

Good luck with that.

Big Grin


I went in looking for Unique a month ago. I got some Herco instead. It is a little slower-burning than Unique, but serves as a substitute for heavier loads.




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Posts: 42763 | Location: Texas | Registered: February 10, 2004Reply With QuoteReport This Post
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PV is showing having 1 & 8 lb Unique in stock now. Hopefully this is a sign that the powder shortage is close to fully recovering.
 
Posts: 1064 | Location: Athens, GA | Registered: February 01, 2005Reply With QuoteReport This Post
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