08-04-2020, 11:47 AM
I love shooting the 129 SST's
Testing COL left me with 2.276" COL, groups tightened up nicely with a few thousandths off the lands to spare.
Going to test some new loads to squeak out more speed, been using IMR 8208 powder.
Testing COL left me with 2.276" COL, groups tightened up nicely with a few thousandths off the lands to spare.
Going to test some new loads to squeak out more speed, been using IMR 8208 powder.