Does anyone have any load info for this cartridge? Overall length is my biggest question. I have a few loads I found around the internet but no length info.
Cartridge is a 220 Swift necked up and fire-formed. Kind of a neat little round unfortunately timing is everything and it predated the 243 and 6mm.
My rifle has a 12 twist.

Thanks gents!

Perry

I would simply use what will fit my chamber or magazine whichever is shorter.

You could use a oal guage or case with a loose fit on the bullet to get the length of the case and bullet to the lands and then come up with an over all length, Or seat a bullet one bullet diameter into the case and see how it feeds and fit the mag.
http://stevespages.com/243_15_75.html