RE: Remington 700 SPSDM .243 - I've been asking questions and collecting information on here for a couples months. This forum has been a great help for my first time around loading my own ammunition, and this is what I've found out. A Winchester casing + CCI lg. primer + Sierra 85gr.HPBT + 38gr. of Varget + set .003 off the lands + Sims barrel deresonator = 1/2" groups @ 100yds @ approx. 3100fps. NO complaints here. Thanks to all for your advice, e-mails, and patience.