RCBS Uniflow and getting better at accurate powder drops

[atepointer]

Very new to reloading here and I hate bugging my 'tutor' on thanksgiving day as I hit him with non-stop questions so maybe someone is bored cooking their feast and has a suggestion. The Redding Model 2 scale is bang on I can weight a bullet 10x in a row and it's on 8x and maybe .05 off on 2..at most a hash mark width. The RCBS Uniflow though.....I'll get 3 in a row right on 43.8 and then blam I'll get a 44.0 or even under at 43.6 with StaBall 6.5! I'd love for this to be a me thing and I'm just not doing it right, but damn I've tried all I can think of. I was up til midnight just doing drop after drop testing it and no consistency to the point I'd feel good not trickling up every single round. Same pace on upstroke and downstroke. The adjustment assembly is snugly in place. I have ordered the internal baffle in the hopes that might help, but is there anything else this idiot can do? I don't want to end up like Russel Crowe in 'A Beautiful Mind'....this is driving me nuts!

 

[smoothy8500]

Baffles do help, and there are mods such as polishing the internal funnel or "throat" to the cylinder that help increase accuracy/consistency of throws. If you don't want to trickle each load then ideally you should find a node using whatever method (velocity or elevation) that is stable and accurate over a range of loads of about .5gr wide.

 

[atepointer]

ok thank you i think that can actually work with 43.6 and 43.8 it was splitting hairs which one to go with. Thanks for your input greatly appreciated

 

[Steel head]

Baffles for sure.
Biggest thing I’ve found with powder throws is consistent cycling by operator.
Gently cycling it is the worst.
There’s some great videos about that out there.

 

[atepointer]

thanks guys! yea i messed around with my 'tempo' cycling the handle and could see subtle difs.

 

[nightman89]

This issue has baffled me as well. I've pretty much decided that I won't worry about it when throwing powder for bulk range loads, and if I'm working on precision rounds I'm going to underthrow and then trickle to get exactly where I want to be.

 

[DaChank]

It also matters what kind of powder your trying to drop aswell. Ball powders work best in a powder drop.