problems with bullseye metering

[mnhntr]

Anyone use Bullseye in a RCBS Uniflow with micrometer? I normally use A#5 for my 45acp loads but had a pound of Bullseye on hand and decided to try it. The A#5 meters better for me. The Bullseye was anywhere from 0.05-0.15 difference in each load.

 

[joneb]

I have a Redding model 3 with a micro pistol meter that meters Bullseye very accurately down to 2.5 gr, the Accurate powders I have tried may throw a bit better.
Could be a static problem ? Your variation seems a bit more than acceptable, have you clean your powder throw ? What is the ID diameter of your micro pistol meter, mine is .32" ?

 

[kingmt]

If that isn't acceptable you need to quit using a measure. We are talking about gn? Right?

 

[beatledog7]

I'm with jibjab and kingmt. What sort of precision were you expecting with a powder throw?

I meter a lot of Bullseye with a Hornady LNL, and I get less than .1gr deviation for 9 of 10 throws. That's close enough for any load I'll ever do.

 

[Walkalong]

Check for oil, check for static. Bullseye meters quite well in general. Much better than many handgun powders.

 

[mnhntr]

I guess I expected with the micrometer it would be exact. I understand it isn't the end of the world to be .15gr off.

 

[Lt.Dan]

I use BE for all my pistol loads and it is close enough. 4.3gns for a 180gn lead .40S&W. My Dillon will barely if at all deviate, maybe .1 and being that I'm under the max load by a bit I'm fine with that. For .45ACP I've gone up to 5.3gns behind a 200gn lead blob, my FNP 45 liked that quite well. For the 1911s I have to tone it down a bit tho.

 

[kingmt]

I have a load that is 1.2gn over max with Bullseye & I still don't weigh everyone.

 

[Walkalong]

The micrometer makes no difference in how the measure meters. It is simply a way to dial back to a setting and get the charge set up faster next time.

Are you using the pistol insert, or the rifle insert?

 

[mnhntr]

pistol insert

 

[BYJO4]

It appears to me that you are getting very good accuracy with your powder measure. The only way to be exact every time is to hand weigh each round using a powder trickler.

 

[J2FLAN]

I have been loading Bullseye (my primary powder) through my UNIFLOW for over 10yrs, it meters as well as any powder I have tryed. Always within 1/10th of a grain measured on my 502 (that is as close as it weighs) . If you are getting different charge weights by more than that, you have oil, dirt or something causeing it. Anyway, in an answer, yea, BULLSEYE meters great.

 

[joneb]

The Bullseye was anywhere from 0.05-0.15 difference in each load.

What scale are you using ? could the discrepancy be with it ?

 

[Mac Sidewinder]

Bullseye measures very well out of my Lee Pro Auto Disk (wish I could say the same for H110 - leaks like a sieve).

Mac