Working up Load for new barrel.

[nf1e]

Working up load for new barrel.

Criterion 26" SS varmint profile .223 on one of my Savage 110s. Loading today for most effective jump. Starting at touching the lands and working out in .010 increments with 10 rnds loaded for each to be shot in 5 rnd groups and then return for verification. Using Berger 73 gn target bullets over 22 gn of IMR-8208 in weighed Starline cases set off with BR-4 primers. Should give about a 2800 fps. Once the baseline is established I will be changing over to 205M primers to see the effect on SD. Whatta Hobby!


Berger 73.jpg8208.jpgSeating.jpgSavate 110 .223.jpgSavage .308 9.jpg

[nf1e]

Just finished loading up 50 rnds for my test for this barrel. Started at a CBTO of 1.99 which is touching the lands and out to 2.03 which gives me a .040 spread in .010 increments. A node usually appears somewhere in that area and can be refined from there. Photo is my fresh test target set up the way I like it with 1/4" aimpoint. I shoot a 5 rnd group in each jump area with a barrel cool down between each then repeat on line 2. Whatta Hobby!








Jump.jpg

[JohnMOhio]

Mighty small aim points. What distance is this done?

[nf1e]

100 yds. I should add that my precision Savage .223 is using a Night Force Competition 15-55x52mm scope. 1/4" looks quite large and correct for this purpose. Whatta Hobby!

[nf1e]

Middle of the night the light came on. Dopey here was adding to the jamb and not the jump. Turned the micrometer die setting bassackwards. Made the correction this morning so all is good. Set the die so 1.990 was it's zero and turned to the minus side for increment of .010 for each batch of the 10 rnd groups. Whatta Hobby!

[JohnMOhio]

Can't wait to see the results on target.

[nf1e]

Raw target. 5 rnd groups are 1 moa low and slightly left of the poa. I did use a barrel cooler for 5 minutes between 5 rnd groups. Shot down collum 1 and then down collum 2 for a repeat of data. Whatta Hobby!








8208.jpg

[nf1e]

Just came in from my range. Shot this at 100 yds. I likey this load. Black center dot is 1/2". Whatta Hobby!








10-10 rifle.jpg

[JohnMOhio]

I would be happy with any one of those groups. Nice work.