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.223 Brass length question
- Thread starter IDPA Mike
- Start date
1.750" is the spec'd trim length for .223 brass in my Hornady manual if my mind serves me correctly, so you are good to go. I will double check my reloading manual tomorrow but I am 99% positive you can load away 
Lyman 47 states trim-to-length 1.750"
The nominal length of the case in their illustration is 1.760"
With 0.010" variations in case length (IOW between 1.750" and 1.760") the only readily apparent problem will be the alignment of the bullet cannelure with the case mouth and the contact of the Lee factory crimp die on the case mouth. You may not be using either, so it isn't really an issue. This also assumes that every bullet in that box has the cannelure in precisely the same exact location.
The nominal length of the case in their illustration is 1.760"
With 0.010" variations in case length (IOW between 1.750" and 1.760") the only readily apparent problem will be the alignment of the bullet cannelure with the case mouth and the contact of the Lee factory crimp die on the case mouth. You may not be using either, so it isn't really an issue. This also assumes that every bullet in that box has the cannelure in precisely the same exact location.
When you trim, trim to 1.750", so good to go.
Anything between 1.740" and 1.760" is OK.
This. I use a Lee case length gauge and cutter to trim my brass on a cordless drill. It cuts to 1.740". Everything above 1.750" inches gets trimmed, but it could as easily have been 1.760". The 0.010" spread makes it a little easier spread for hitting the cannelures though.
