Case trimming with RCBS Pro Trim 2

N

ninosdemente

New member
So last night I was trimming 20 - 30-06 brass with this trimmer. Now I know the case length is 2.494", and not to go past this size.

When trimming I trimmed... I kep getting different sizes... so I am definitely trimming more than I should and also not being consistent. They are measuring between 2.450"-2.485".

Is there a tip/trick I can do to keep consistent or at least keep them all near the same size? I could only think of not going to much and just do little by little/measuring until the desired length is reached for all of them (keep within same size).

How does one determine the starting length when trimming down the casing? I have plenty of brass so if I have to discard, then no big deal for me. Still learning.
 
Sounds like the set screw for the adjustment isnt tight. I have the same trimmer and get less than .005 variation.

Sent from my SM-G950U using Tapatalk
 
Ok, then it is user error then... will check on youtube to see what I am I doing wrong... as that was the first time I used it. Plus I was not able to find much online on "properly" use of the pro trim for me. Thanks guys.
 
On youtube. As I am not properly setting the trimmer correctly.

Also, how much to take off or how does one determine the length desired for trimming brass?
 
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