Have a 223 that shoots 1/4 minute with: 73 grain Hornady ELDM Nosle once fired case (Neck sized) 25.1 grains Varget Fed 205M Velocity is average 2948fps Each charge was weighed (Check weights used to verify scale) Bullets, primers & powder from same lot numbers The primers are 20+ years old (Bought/hoarded em during Great Primer Scare back in the 90s). Always stored in garage. For short to medium range (Under 500 yards), everything is spiffy. Problem is, velocity spread is almost 100fps over a 9 shot string. 2898 2922 2941 2956 2996 2946 2952 2986 2937 For long range (In this instance, 500-1000 yards for the sake of conversation), this is gonna cause misses. First plan is, try fresh batch of Fed 205M primers. If that don't work, I will swap out primers for another brand Brass (Nosler prepped cases. Fantastic quality stuff so far. Straight and round as any Lapua I have seen) is fired once in this rifle. Then neck sized. Never figured I would look for improvement on a 1/4 moa load/rifle. But here I am! Suggestions or thoughts?