longrangehunterII
Well-Known Member
I picked up a used Kimber Advanced Tactical 308 Win. that had only 67 rounds down the barrel for my brother on a Cyber Monday super buy that was too good to pass up. So I worked up a load using the 168 SMK and now needed to find a hunting load.
I worked from the previous load development and only changed the seating depth to start with. These bullets all displayed the same ogive length, even better then the SMK's. I had previously measured both bullets using a Sinclair seating depth gage and they were both very close to the same measurements but I started with a different seating depth and only made one change .005" further out and Boom..... Bug Holes. Took only 10 rounds to find a load and made 5 more to test at 455 yards and called it good.
Bottom photo is a 168 SMK with the first 5 shots with various charge weights and then another 5 all at 42.9 grains leaving the barrel around 2600 fps. I had another load that was a little slower that shot three shot groups into the .1's.
Note: the very first round tends to always be higher when shot through a clean barrel in my observations over a lot of years and the rounds will settle down once the fouling has seasoned the barrel.
Berger 168 Classic Hunter
43.0 RL-15
F210M
Winchester match prepped brass
2.2550" CBTO
I worked from the previous load development and only changed the seating depth to start with. These bullets all displayed the same ogive length, even better then the SMK's. I had previously measured both bullets using a Sinclair seating depth gage and they were both very close to the same measurements but I started with a different seating depth and only made one change .005" further out and Boom..... Bug Holes. Took only 10 rounds to find a load and made 5 more to test at 455 yards and called it good.
Bottom photo is a 168 SMK with the first 5 shots with various charge weights and then another 5 all at 42.9 grains leaving the barrel around 2600 fps. I had another load that was a little slower that shot three shot groups into the .1's.
Note: the very first round tends to always be higher when shot through a clean barrel in my observations over a lot of years and the rounds will settle down once the fouling has seasoned the barrel.
Berger 168 Classic Hunter
43.0 RL-15
F210M
Winchester match prepped brass
2.2550" CBTO
