I have been struggling with consistency/accuracy with primer depth on my Lee single stage press, using the standard down stroke priming arm. I get primers from .001" above case-head to .003" below case-head. If the primers are above the case-head I try to push them in further, and they go as deep as .005" sometimes. I thought I would be able to learn to use the standard priming arm, but it's not working for me.
I have been reading "Lyman Reloading Handbook 49 Edition", and after reading the sales pitch on their "Ram Priming Unit" I started looking online at ram priming units. I like RCBS's unit best, but I am not sure a "Ram Priming Unit" will help me and my reloads. I am not concerned with my reloading speed - only
consistent/accurate depth with priming.
So my questions for all you are:
(1)Has anyone confirmed that there is less velocity deviation when seating primers to the exact same depth, or is it a marketing ploy?
(2) How consistent/accurate are seating depths when using a "Ram Priming Unit"? Hopefully no more then .002" variations, with sorted brass.
(3) How consistent/accurate are seating depths when using a "Ram Priming Unit" compared to using other priming units/methods?
Feel free to be as detailed as you wish with your results and opinions.
Thank you!
.357MAN