Ive been testing the 73 ELDMs for a little while now.
20" 8 twist 5R ARP barrel with a JP Adjustable Gas Block.
http://ar15performance.com/inc/sdetail/38007/12239Lapua Brass
BR4
23gr H4895
73Gr ELDM 2.400" COAL (0.005" Jump)
Single feeding them for 600 F-Class
10 rds at 100 yards.
Order of groups:
New Lapua Brass
Once Fired Lapua Brass full length sized
Once Fired Lapua Brass Neck Sized only
I adjusted my zero just to keep the groups seperate.
Neck sized some more just to do a little more testing and ended up with this 12 shot group at 100 yards.
They sure do look good if nothing else.