Metering Bullseye

[Steve H]

I have never used Bullseye. How well does it meter through a Dillon 650? From what I have read on the Alliant site it seems as though it may be a pretty fair "jack of all" pistol powder.

I found that Unique is NOT the greatest metering through the 650

 

[Valor35]

I use both Unique and Bullseye, though not in a 650. Unique is tougher to meter exactly, but Bullseye is a breeze.

 

[KansasSasquatch]

With Unique in my Hornady powder measure I'd get .2+/- variations on a fairly regular basis. Bullseye tends to be dead on with most charges I weigh, with an occasional .1+/- variance. Even though Bullseye meters better I still prefer Unique. The variations I get with it don't seem to effect accuracy and the recoil doesn't seem as snappy, but the only pistol calibers I currently load are .38spl and .45acp.

 

[Walkalong]

Bullseye is much finer grained than Unique and meters very well through any measure I have tried it in. I do not have the Dillon, but I can't see why it wouldn't meter Bullseye just fine.

As KansasSasquatch posted, while Unique doesn't meter as well as some fine grained powders, it doesn't seem to matter on paper.

 

[Bud0505]

I have a Dillon 550 and have never had a problem metering Bullseye or Unique.

 

[Slamfire]

At least for pistols, I am of the opinion metering is not so important. I load all my pistol ammunition on a Dillion 550B. All charges are thrown. Bullseye gives me very consistent ammunition, velocity wise, in a number of calibers. I have compared velocity spreads of the 38 Spl , 45ACP with AA#5, a ball powder, and Unique and Bullseye. It is counterintuitive, but the “best” metering powders do not necessary give the lowest velocity deviations.

[SIZE="3"]4" S&W M10-5 
	
148 LWC Valiant  2.7grs Bullseye W/W cases WSP 
19-Apr-09	T ≈  60-65 ° F
	
Ave Vel =	696.2
Std Dev =	12.04
ES =	48
High  =	721.3
Low  =	673.3
N =	32
	v accurate, about 2" low, no leading, mild recoil
	
158 LRN Valiant  3.5grs Bullseye Mixed cases WSP 
19-Apr-09	T ≈  60-65 ° F
	
Ave Vel =	758
Std Dev =	22.86
ES =	100.9
High  =	810.5
Low  =	709.5
N =	32
	
158 LRN  3.5grs Bullseye Mixed cases WSP 
5-Aug-06	T = 100 °F
	
Ave Vel =	796
Std Dev =	13.89
ES =	55.24
High  =	813
Low  =	757.9
N =	23[/SIZE]

 

[rsrocket1]

Be careful with the stuff sitting in your powder hopper. Some powder measures don't mind Bullseye sitting in there for weeks. In the Hornady LnL hopper, it will discolor and mar the plastic even if you use it just for your current loading session. I usually load it about 1/4 full, then empty it out after each session. After using about 5 pounds this year, the plastic is pretty darn wavy.

HOWEVER.
I really like the powder. It can generate close to Unique velocities (close enough not to notice) at 10-20% less powder. You need to also know that it can get "lost" in the bottom of a 38 special or .357 magnum case and it can be smokey, but that's half the fun of the powder.

 

[243winxb]

Bullseye works well in my old Dillon RL-450

 

[bluetopper]

If your powder dispenser doesn't meter Bullseye well, you need to get another one.

 

[joneb]

I can meter Bullseye accurately down to 2.5gr maybe less but I haven't tried, I have a Redding model 3 with a micro pistol meter and it will not meter large flake powders like Unique, Trail Boss will bridge throwing 1/2 and 1/4 charges.
Bullseye is light and fine and static may cause trouble in dry climates.

 

[BYJO4]

Bullseye meters extremely well. I have 3 powder measures and they will drop Bullseye dead on with an ocassional +/- .1 gr. I load all my handgun calibers with Bullseye or Unique.