Haven't seen a thread focused on launching the heavies out of the 22 Creedmoor so here it be.
Just finished my first ladder test, my rig is as follows:
AIAX w/ 24" Krieger 6.7" Twist 4-Groove
Alpha SRP Brass - 1x fired
95 Grain Sierra Match King Seated at 2.188 to Ogive (.010 jump)
Hodgdon H4350
CCI SRP Primers
I'm using a 6.5 Creedmor, Redding Type-S full length bushing neck sizing die with a .252" bushing gives me around 1.5 thou of neck tension. For seating, I'm using Hornady's custom Grade seating die. I'm doing minimal case prep - only chamfer and debur until I get the case holder for my Giraud trimmer.
I ran 24 rounds through the rifle in .5 grain grain increments up to 42 grains to find my pressure ceiling. I was getting a sticky bolt at everything above 41 grains. For my ladder test, I used 40.8 grains as my top end and worked down to 38.4 gr in .4 gr increments. I had one sticky round at 40.8, otherwise everything was good to go. My OCW landed at 39.6 grains of H4350 which netted me 3115 FPS average for 3 shots. It seems like a pretty moderate load. the accuracy for 39.2, 39.6 and 40 gr was all around .300" for 3-shots and had the exact same POI.
So far I have 50 rounds through the barrel and I am VERY impressed. I'm going to do some minimal seating depth testing with the 39.6gr load and see if I can get it a little better, but quite honestly, I'm happy with where its at! I'm going to load up 40 rounds with some new Alpha brass and stretch it out to 825 yards this wednesday.
Anyone else have any 95 gr SMK data????? Anyone try out H1000 with the 22 Creed and 95 grain slugs?
By the way, this round cycles 100% out of the double stack AIAX mags, something the 22-250 would not do for me when I was messing with it.
Just finished my first ladder test, my rig is as follows:
AIAX w/ 24" Krieger 6.7" Twist 4-Groove
Alpha SRP Brass - 1x fired
95 Grain Sierra Match King Seated at 2.188 to Ogive (.010 jump)
Hodgdon H4350
CCI SRP Primers
I'm using a 6.5 Creedmor, Redding Type-S full length bushing neck sizing die with a .252" bushing gives me around 1.5 thou of neck tension. For seating, I'm using Hornady's custom Grade seating die. I'm doing minimal case prep - only chamfer and debur until I get the case holder for my Giraud trimmer.
I ran 24 rounds through the rifle in .5 grain grain increments up to 42 grains to find my pressure ceiling. I was getting a sticky bolt at everything above 41 grains. For my ladder test, I used 40.8 grains as my top end and worked down to 38.4 gr in .4 gr increments. I had one sticky round at 40.8, otherwise everything was good to go. My OCW landed at 39.6 grains of H4350 which netted me 3115 FPS average for 3 shots. It seems like a pretty moderate load. the accuracy for 39.2, 39.6 and 40 gr was all around .300" for 3-shots and had the exact same POI.
So far I have 50 rounds through the barrel and I am VERY impressed. I'm going to do some minimal seating depth testing with the 39.6gr load and see if I can get it a little better, but quite honestly, I'm happy with where its at! I'm going to load up 40 rounds with some new Alpha brass and stretch it out to 825 yards this wednesday.
Anyone else have any 95 gr SMK data????? Anyone try out H1000 with the 22 Creed and 95 grain slugs?
By the way, this round cycles 100% out of the double stack AIAX mags, something the 22-250 would not do for me when I was messing with it.