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!

 

 

 

[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!

 

 

 

[NF1E]

Middle of the night the light came on. I was adding to the jamb, and not the jump with the way I set this test batch up. the 1.99 was touching the lands so all the following should be less in minus .010 increments. Made the correction this morning so we are ready to go with. Set the micrometer die up with the 1.99 as the zero and moved the dial to the minus side by .010 for each progressive 10 rnd group. Should be a fun test. Made up fouling rounds that are a .050 jump. Whatta Hobby!

[NF1E]

60 rounds of testing complete for the day. Barrel really likes a jump of .010 off the lands with 22 gn of IMR-8208 pushing a 73 gn Berger target bullet in a Starline case. Running right around 2650 fps and 10 shots in a 1/4 moa group at 100 yds. Whatta Hobby!

[NF1E]

Raw target data. 5 rnd groups are 1 moa below and slightly left of 1/4" poa. Whatta Hobby!

 

 

[NF1E]

Just came in from the range. Shot this with my most recent .223 load. SD of 8.8 is good for me. Black center dot is 1/2". Range is 100 yds.  Whatta Hobby!

 

 

 

[unforgiven]

Great job brother you are putting in the work 🍻🍻

[NF1E]

33 minutes ago, unforgiven said:

Great job brother you are putting in the work 🍻🍻

Yep, and enjoying every dang minute of it. Whatta Hobby!

 

 

 

[Jeff300]

That looks really good! 

[NF1E]

Shot a 3-5 on our 100 yd 1/4" 10 dot challenge today. Max spread was a .4 with 8 rnds inside a .25. Load 73 gn Berger's in Starline brass over 23 gn of Varget set off with BR-4s. Rifles current configuration Savage 110 in .223 with Jard 3 oz trigger in an ORYX chassis with a Night Force Competition 15-55x52 scope. Whatta Hobby!

 

 

 

 

 

[Magwa]

Your vertical dispersion as shown on your targets can be eliminated by finding the powder charge first or another powder once you test powder charges and find a stable charge amount that does not have a lot of vertical you can then fine tune with seating depth..... you will most likely find 2 powder charge nodes one low in the 2600 range and one high around 2850 depending on the powder... looking good  i bet that gun can shoot bug holes.....