2wheelwander
New member
This is my first go around with .223 (or any necked ammo for that matter). I'd decapped, and sized everyting. I loaded about 6 rounds no issues, then thought I'd better check case length. Went through my brass (~500 pieces) with calipers as a go/no go gauge and found about 75 pieces that were over recommended max case length. Put them on my Lyman case trimmer set at 1.750. Then onto the prep station where I chamfered and deburred all those cases. and tossed them into my tote of ready to go brass
Back to the press and run the resized brass through the sizer just to make sure, new primer, powder, go to seat the bullet and it crushes the top of the neck down. Everything was fine until I sized/deburred/chamfered. Four cases in a row crushed when seating the bullet. I backed the bullet depth all the way out to the point the projectile began to seat, but collapsed the neck again.
It seams when I decap/resize it seems it isn't resizing as it should. I'm confident my chamfer/debur is up to snuff.
I'd appreciate any experienced advice on this. TIA.
Back to the press and run the resized brass through the sizer just to make sure, new primer, powder, go to seat the bullet and it crushes the top of the neck down. Everything was fine until I sized/deburred/chamfered. Four cases in a row crushed when seating the bullet. I backed the bullet depth all the way out to the point the projectile began to seat, but collapsed the neck again.
It seams when I decap/resize it seems it isn't resizing as it should. I'm confident my chamfer/debur is up to snuff.
I'd appreciate any experienced advice on this. TIA.