forming 20 vartarg from 223 brass HELP

[Tiratore]

 

[chuckshooter]

I make my VT brass using the redding form dies for both my rimmed version and regular vartarg. it's a PITA no matter what, there are a lot of steps including annealing but it's worth it as it's hard too beat the preformance of this little cartridge.

 

[chuckshooter]

did someone mention 20 practical, I was working up some loads for my latest 20p a couple of days ago, I was being a little lazy and had not set up the chrony for any of the load development until I had decided on 24gr of rl10x behind a 32gr zmax. I was surprised to see 4200 fps. next was my new copper in 20tac with the same load. 4310 fps. that's just to fast. now I have to work up some loads for less speed, you won't here me say that very often

 

[dedogs]

my rimmed version

chuckshooter, What is the parent case for your rimmed version? Thanks, dedogs

 

[chuckshooter]

chuckshooter, What is the parent case for your rimmed version? Thanks, dedogs

starline 360DW. you can use 357max but with DW360 there's very little trimming the length

 

[dedogs]

Thanks! dedogs

 

[chuckshooter]

I need the rimmed version because I'm a martini man

 

[Shaggy357]

This is how I made 400 .223 into .221 for a buddy. Lost a few cases setting up the dies. Once the dies were set, I ran about 450 without a loss. Hope this helps.