I’m answering someone else’s question (hope that’s okay).
I’m also using Hornady 285 gr. ELD’s, still fiddling with the load but I am seeing excellent results at the 100yd mark (I will have chance to go out to 2200 yards later this year).
Specs:
Barrel: 27” Bartlein / 1-9.5” Twist rate
Powder: Retumbo
Primer: Fed 215
Brass: Hornady
Bullet: Hornady 285gr ELD Match
CBTO: 2.8960 = .060 off Lands / Cartridges will fit a DSSF 3.850” CIP Magazine
COL: 3.7450
Annealed: Yes (AMP Mark II every reload)
Necks Turned to: .1325 (21st Century Shooting Neck Turning Tool)
Neck Tension: .002
Charge: 92.6 gr.
I Shot yesterday (1-13-2019):
Avg. FPS: 2818
ES: 5
SD: 1.88
MOA: .5 (have shot better than .25 with this load at 100 yds)
Have also shot .5 MOA at 92.8 gr. ES: 14 SD: 6.13 Avg. FPS: 2819