Recently loaded .243 with good success, but am still working up in the powder charge department to find the perfect load.
I am using IMR 4064, Sierra 85g HPBT.
I worked up from 36-38 in half grain increments. I currently have 38, 38.5, and 39 grains loaded up.
My oal is 2.620 (Lyman gave 2.615 with the exact bullet). However, Sierra data has the oal at 2.650. Do I have a problem here? The other loads all shot fine with zero pressure problems. Why I seated them at 2.620 is beyond me. I knew that I would eventually experiment with longer oals, but chose one that was a little longer than listed in the Lyman to begin my workup.
Your advice would be appreciated,
Stinger
I am using IMR 4064, Sierra 85g HPBT.
I worked up from 36-38 in half grain increments. I currently have 38, 38.5, and 39 grains loaded up.
My oal is 2.620 (Lyman gave 2.615 with the exact bullet). However, Sierra data has the oal at 2.650. Do I have a problem here? The other loads all shot fine with zero pressure problems. Why I seated them at 2.620 is beyond me. I knew that I would eventually experiment with longer oals, but chose one that was a little longer than listed in the Lyman to begin my workup.
Your advice would be appreciated,
Stinger