I am looking for all the information I can gather on pure accuracy loads for this caliber. It is a Remington 700 ADL 22-250, floated barrel 1.25 lbs. trigger and a 6-24X40 BSA Contender scope, from sand bag rest @ 200 yds it will print out .55" 5 shot group with no to mild wind. Is this all I can expect or will this $400 set-up do better. I have tried Varget, H-380, and best results with IMR 3031,with Nosler 50 BT. I have also used 50 -55 grain all types of bullets and even CCI -BR2 primers. I do neck sizing, primer pockets cleaned flash hole reamed, trimmed, deburred and sort by weight. Is neck turning worth the time??? I am greatful for all of y'alls input.