Author Topic: resizing (Read 379 times)

josebd · « **on:** December 05, 2003, 10:04:02 AM »

on a .223 case when reloading do you want to trim the cases to the maximum 1.760 or to the case trim length? do i need to just keep them at 1.750?

Flint · « **Reply #1 on:** December 05, 2003, 10:35:42 AM »

Depends on when you trim, before or after resizing. They stretch when fired, they stretch (or shrink) when resized. Set it at .005 or .010 less than the max OAL. I trim fired cases usually about .010 short. The resized case then seems to be OK.

josebd · « **Reply #2 on:** December 05, 2003, 10:59:00 AM »

i was going to trim after resizing.i have cases that are 1.756,and some 1.750,1.740. is it ok to use the shorter cases as long as the c.o.l. is correct? thanks for the help im new at this,just want to be safe.

bigdaddytacp · « **Reply #3 on:** December 05, 2003, 03:43:40 PM »

Quote from: josebd

i was going to trim after resizing.i have cases that are 1.756,and some 1.750,1.740. is it ok to use the shorter cases as long as the c.o.l. is correct? thanks for the help im new at this,just want to be safe.

.......Most shooters looking for accuracy like to keep their brass sorted by the number of times it has be fired/reloaded.....if you do this the brass stays near the same length in that batch and when ONE case gets to the max length then ALL of the cases are then trimmed to the "trim" length and deburred and close inspected.......as you ask about the neck dies in the other post the use of the collet or neck dies will keep the cases from growing as fast as a full length die ....IF the full length die doesn't match you chamber closely.......a close to the same size die as the chamber will "work" move the shoulder less and the brass won't grow as fast or work harden.....some batchs of brass is worse than others and hotter loads usually make the brass grow-lengthen faster........if you get really interested in your chamber,the tools to measure it and chamber cast will give you the information...and Sinclair sells chamber length gauges that measure the EXACT length of your chamber.....but if you trimm them to the "trim" length and not let them get over the "max" length then you will be safe and your brass will have a more uniform neck tension on the bullets..it won't hurt to shoot the short ones ,you are doing right....reading and loading and asking questions....just enjoy the process and double check ANY advice and you will have safe fun loads to shoot and learn the little details that can make a difference........again good luck and good shooting-loading!!