So this is the second time I've played with working a load up for my Savage predator hunter 6.5x284. This time around I used the following ingredients:
Lapua brass fire formed, uniformed primer pockets, and flash hole.
123 grain Hornady Amax
CCI BR2 primers
IMR4831 powder
Bullets seated .055 off lands due to long throat and shortness of the amaxs
Shot all groups in 91 degree weather letting rifle cool about 10 minutes between each five shot string. Now you experienced people here is some crazy questions, I recently purchased and been loading with the Wilson dies and press.. Most of my velocities and close in one or two groups I've got a really low or high number in some groups which is leading me to believe it could be inconsistent neck tension due to the neck being sized on the outside of brass that has not been turned. Idk... I've also noticed that every round that has been fired in the rifle since I purchased it new, after shooting the spent cartridges neck is so tight that a bullet will not slip down in it. However I have the standard size bushing with my Wilson neck die and it does size the neck back some but it's very minimal. All the groups were shot from a solid bench with front a rear bags. What's everyone's opinion of what's going on based on what you see and hear? What is everyone's opinion on what you would do or try. All powder charged were double checked on rcbs 502 beam scale and on my Hornady auto dispenser/ scale. The rifle has less than 200 rounds through it and was broke in using the shoot one clean, shoot five clean type method. I clean about every 25 rounds now. Rifle has a 20 Moa base, bushnell elite 6-24x50mm scope, Burris rings
groups are at 100 yards
49.5 gr
2835 (fouler)
2842
2840
2819
2771 (low for some reason)
50.0 gr
2875
2874
2888
2873
2892
50.5 gr
2918
2909
2940
2925
2922
51.0 gr
2940
2945
2953
2914
2995 (high)
51.5 gr
2969
2972
2985
2974
2965
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