My posting from another site:
The results are in. I have made a few trips to the range and had some good luck and some bad luck. All in all I learned a lot about the gun. I did a little ladder test over the chronograph and was very impressed with the speed. The groups on the other hand, not so impressed.
I was not happy with the runout (.003 to .007) of the bullets I was shooting. That might have been the problem. I changed to a RCBS Gold Medal Match Seater die. (.001 to .003) I was not happy with the seating depth either. I changed them both and got the results I was looking for. I changed it from 3.600 to 3.663.
H1000 and the 200 grain accubonds was much slower than 200 grain accubonds and retumbo. I got the 200 grainers going about 3250. Got to be too much recoil on the gun.
Retumbo and the 180 grain Ballistic Tips and Accubonds proved to be the best combination.
98 grains I had the bullet going 3350. It takes 108 grains in my Weatherby 30-378 to get the bullet goin that fast.
I ended at 100.7 and capped her out at 3487. Pretty darn fast but pretty darn hot. I backed it off a little bit to 100.2 and was moving the 180 grain BT at 3460ish, give or take. What was more impressive was the groups that it shot.
I seated the bullets as far out as I could in the magazine. COAL came to 3.663. Charge was 100.2 grains of Retumbo. Bullet was 180 gr BT and Accubonds. Primer is a Fed215M. Brass is R-P weighing 268.7 to 270.2 grains. Both had the same POI. BT were a little tighter. The picture is the BT. The gun is a Stock Remington LSS with a 26" barrel. (purchased on this site) Lightened the trigger, installed a muzzle brake, bedded the action, and replaced the spring in the bolt. ($550)
THE TARGET WAS SET AT 300YDS!!!!!! There are 6 shots here.
