VTDW
12-29-2007, 12:29 PM
I have always had problems with gas check fit. I believe the reason for this is I use oversized boolits and gas checks come undersized for the boolits I load.
For example, my Hornady .44Cal gas checks measure .401-.402 inside diameter and my boolit bases measure .405-.409. I looked around and found a punch with a radius'd head and use it to flare my gas checks. Wow but what a difference it makes!! No more uneven gas checks and they crimp nicely when run thru the sizer. I also do this for my .308MX as I use .311 boolits. I haven't gone to the trouble of writing down the dimensions for the .30 Caliber gas checks or my boolit base sizes but they sure crimp on nicely and I don't have to bounce the lever on my Lyman 4500 sizer to try and get the gas checks square with the bases. I tried annealing with and without quenching and it didn't help but flaring sure does.
Anyone else do this?
http://img.photobucket.com/albums/v354/vtdw1/Gas%20Checks/HPIM0101.jpg
http://img.photobucket.com/albums/v354/vtdw1/Gas%20Checks/HPIM0107.jpg
http://img.photobucket.com/albums/v354/vtdw1/Gas%20Checks/HPIM0108.jpg
For example, my Hornady .44Cal gas checks measure .401-.402 inside diameter and my boolit bases measure .405-.409. I looked around and found a punch with a radius'd head and use it to flare my gas checks. Wow but what a difference it makes!! No more uneven gas checks and they crimp nicely when run thru the sizer. I also do this for my .308MX as I use .311 boolits. I haven't gone to the trouble of writing down the dimensions for the .30 Caliber gas checks or my boolit base sizes but they sure crimp on nicely and I don't have to bounce the lever on my Lyman 4500 sizer to try and get the gas checks square with the bases. I tried annealing with and without quenching and it didn't help but flaring sure does.
Anyone else do this?
http://img.photobucket.com/albums/v354/vtdw1/Gas%20Checks/HPIM0101.jpg
http://img.photobucket.com/albums/v354/vtdw1/Gas%20Checks/HPIM0107.jpg
http://img.photobucket.com/albums/v354/vtdw1/Gas%20Checks/HPIM0108.jpg