yotesmoker
Member
how critical is it wwwwwwwwhen a powder measure drops a plus or minus. 02.I use unique for a 10gr drop and usually get a plus or minus. o2.Should that affect the accuracy on the load?
metering question
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Reloadron
Contributing Member
What exactly are you saying because I read +/- .02 as in two hundredths of a grain which is nothing at all. That seems to be how you typed it out.
Ron
LiveLife
Member
If OP meant +/- .2 gr, I would be happy with that as I can't meter Unique that consistently.
Blue68f100
Member
The one reason I don't use Unique. The best I could get consistently is what your getting. ±0.2gr of a 10gr charge is a 4% swing. If you can notice it while shooting it's too much in my book.
Schwing
Member
My experience with Unique is that a +-.02 or less variation in drops makes very little difference in accuracy unless you are trying to reload very small loads such as .380.
Some time back I did some testing with 9mm loads with Unique. My charges were around 4 grains behind a 124 grain LRN bullet. The +-.02 difference made around a 20-30fps difference in velocity. For your 10 grain drops, I would be willing to bet that it is much lower that that.
For me, this is why Unique is my favorite powder for handgun calibers. You really don't see huge swings in pressure like you do with something like pistol powder (which I still like so I'm not harping on it). It is true that there are powders that meter far better but, once again IMHO, there isn't another powder out there that is as versatile as Unique.
Some time back I did some testing with 9mm loads with Unique. My charges were around 4 grains behind a 124 grain LRN bullet. The +-.02 difference made around a 20-30fps difference in velocity. For your 10 grain drops, I would be willing to bet that it is much lower that that.
For me, this is why Unique is my favorite powder for handgun calibers. You really don't see huge swings in pressure like you do with something like pistol powder (which I still like so I'm not harping on it). It is true that there are powders that meter far better but, once again IMHO, there isn't another powder out there that is as versatile as Unique.
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Arkansas Paul
Member
First of all, I assume you mean .2 and not .02 grains.
That is why I like Unique for larger cases. For .45 Colt I load 8 or 8.5 grains behind a 255 grain bullet in a Ruger Blackhawk. I don't care if it's .2 grains one way or the other.
Now for rounds like 9mm and .38 Special I like to use a powder that meters a little better like W231/HP38.
However, I do this merely to give myself peace of mind. I really don't think it matters. Many, many guys who have been reloading 50 years use Unique exclusively for every caliber they load with perfectly safe and accurate results.
I know I've read rcmodel say that he pretty much uses it for everything he can. And I certainly wouldn't argue with him about anything reloading related.
That is why I like Unique for larger cases. For .45 Colt I load 8 or 8.5 grains behind a 255 grain bullet in a Ruger Blackhawk. I don't care if it's .2 grains one way or the other.
Now for rounds like 9mm and .38 Special I like to use a powder that meters a little better like W231/HP38.
However, I do this merely to give myself peace of mind. I really don't think it matters. Many, many guys who have been reloading 50 years use Unique exclusively for every caliber they load with perfectly safe and accurate results.
I know I've read rcmodel say that he pretty much uses it for everything he can. And I certainly wouldn't argue with him about anything reloading related.
Zeke/PA
Member
I load Unique in both .44 Special and .44 Mag with very good and accurate results.
Average Joe
Member
No powder measure is perfect, just stay a little below max and don't worry about it.
Dudedog
Contributing Member
I can't seem to get Unique to meter better than + or - .2 in small charges (say 4gr). Meters better at larger charges. I like the way Unique shoots but it is not high on my list of powders due to the way it meters for me.
Having said than when using it in 9mm I always just loaded so I was at least ..2 beloiw Max to allow for the + swing and never had any issues.
Having said than when using it in 9mm I always just loaded so I was at least ..2 beloiw Max to allow for the + swing and never had any issues.
Unique usually runs +-.1 for me with Dillon charge bar. I have seen it, but rarely does it go .2 from setting. If you are midrange in the recipe it should be of little concern unless as said, it's small like a .380. I couldn't imagine running it .25 cal. Holy moly, .2 gn varience would range +- 15% of recipe 
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