Here is what I have so far.
Please use the following post format. Fill in what you can when you post, then fill in the rest later when possible.
Intended use: Training\practice, , plinking, hunting, tactical, etc.
Case manufacturer and prep work done: anneal? neck ream? neck turn?
Bullet weight and type:
Powder charge weight:
Accuracy @ 100yds
Here is the data H had posted:
Pretty easy to see which powders will work best with each weight bullet after today.
85s and 90s- Re7, 2200, 1200R--------3300+ from 20" barrel
100-10X, 2230, H322, 748, BLC2------3050-3100
110-10X, 8208, N530,H335------------2950-3000
NOTICE---These are near max loads for the reason above. Be careful when using formed 308 brass start with a load at least 3 gr lower and workup.
- 18" barrel--I think the burn rate of CFE, Varget, RE15 and AR Comp is a little slow for optimum velocities.
37gr CFE223, not max pressure. 110gr HPBT=2855fps chrono did not read above 37gr. 40gr was not max pressure.
37gr CFE223, not max pressure. 120gr SST=2736
39gr CFE223, Max pressure 120gr SST=2860 primer starting to flatten, no cratering.
38gr CFE223, 130gr Berger=2692fps-no signs of pressure.
10/18/13-Using Creedmoor brass CCI BR4 primers, 20" barrel. The lands in this chamber are a little closer (.025) than the 6.8s so the same COAL can be used. IMO there is plenty of velocity here with the 130gr bullets.
130gr Berger-36gr 8208=2796fps
120gr SSt-37gr 8208=2887
110gr HPBT-38gr 8208=2998-
Powders usable- always start lower and work up the loads shown are near max with 130gr Bergers.
CFE 223 is on the slow side with 130gr bullets.
8208--36gr pushed 130 Berger to 2796fps
85 and 90gr bullets---RE7 36gr produced 3290fps
7/31/13- all loaded to OAL 2.29" 45gr gross case capacity(Creedmoor brass), 18" barrel.
36gr 8208- Hornady 120gr SST produced 2820fps.
37gr IMR 8208- 100gr nosler accubond=2994fps
36gr Alliant 1200R - 105 GS SP solid copper=2996fps
37gr Alliant Re7- 85gr TSX=3450fps
110gr Hornady HPBT-near max loads
85gr TSX-near max loads
Using Hornady Creedmoor brass
34gr of 1200R behind the 130 is max IMO...2789fps.
37gr H335, 130 berger=2850
37.5gr H335, 130 berger=2889--close to max, no cratering, primer starting to flatten out a little.
38gr H335, 120gr SST=2977
35gr 1200R, 120 SST=2952
38gr H335, 110gr HPBT=3045
35gr 1200R,110gr HPBT=3023