Cant meter tightgroup consistantly

I am using 4.1 of Titegroup in my LNL for my 9mm with 124 fmj's and am getting consistent measures. The only difference is I replaced the pistol measure with a micrometer one, and it works great to dial in my loads and does not vary at all.
I have just finished loading 1000 rounds without issue.
 
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Another vote for the baffle. I used to use 231 and switched to Tightgroup. Initially I had the same problem you have but put a baffle in my Lyman 55 and it solved the problem.

I also keep a small piece of fabric softener sheet in the powder reservoir secured by the cap.
 
BCboy said:
The hornady meaure dosent have a baffle , mabey I need to pic one up?
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Yours must be an old unit, they all come with baffles for the past 2+ years or so. I would either get or make one ASAP and see if it helps.

I use 3.5gr of Titegroup in my .40 loads, and the LnL powder measure is consistent to +/-0.5gr. I re-check with a scale that is 0.01gr accurate, just to be sure. I also used Titegroup in my 9mm loads until recently, and it metered fine. I do:
1. use the micrometer adjustment,
2. wipe the hopper down with dryer sheets before pouring powder,
3. use graphite powder to lube the insert when switching calibers.

None of the above are critical IMO, but the lack of a baffle is an issue.
 
acrashb said:
While baffles do help reduce variance as the powder column shrinks and grows, I load titegroup without one and have no trouble. I don't think the lack of a baffle is related to the variance that the OP is reporting.
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Since that seemed to be the only difference in our setup, that's the only thing that came to mind... :(
 
rdgietz said:
As the title says.. i have found the same thing with my Dillon 550. If in pay very close attention to the rhythm of my stroke (now that sounds a bit odd, LOL !!!) on my Dillon 550 i can get a very consistent powder throw.
I normally weigh every 1/10 charge just to make sure of the charge and over the two years i have been reloading have seen that consistency comes from rhythm of the stroke (LOL). To break it down even more.. its the amount of movement (or shake) the powder measure goes through on each cycle that i think gives the consistency.

I measure my powder in milligrams, which is a finer measurement than grains. 64.79 milligrams = 1 grain. Therefore 6.479 milligrams = 0.1 grains. I use VVN320 and IMR SR4756 (in 9mm, .40 and .45) and both meter well with this system I usually get about a 3 milligram spread (over 100 loaded cases, 10 of the weighed) at most when i pay attention to rhythm.

Another thing i do is always freshly fill the powder hopper using a funnel (I use a piece of paper formed into a funnel) for each loading session. I found that powder does settle over time and a freshly filled hopper will deliver most consistent charges.

Ok my last suggestion is to use VVN320 instead of Titegroup. Both powders have very similar burn rates but i do know that VVN320 really meters well and is a very clean powder.

HOpe this helps


RDG
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I have to echo this - using the same "rhythm" for the throw really makes a difference. iIt took me a year to figure out Titegroup. It's made up of slightly flattened spheres, not uniformly sized, and settling can make a significant difference. I found that it works better to fill the hopper only about enough for 20 rounds or so, then top up. This helps reduce the settling effect.
 
i dont use a baffle but if I throw the lever inconsistently ill mess up the measure. If I keep it consistent, it comes out consistent, any throws that I fumble I dump back in and re do.
 
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