I haven't begun to reload for my SPS-V yet but have tried several kinds of factory match ammo. I can't get a decent group with the federal 175gr SMK, and they seem to exhibit a lot of vertical stringing. For comparison, 168gr Hornady AMAX match consistantly yields .6" 5 shot groups for me...Do you think the long throat of the SPS may be causing the bad groups with 175gr? I am debating on whether I should even bother trying to get them to shoot when the 168gr are showing so much greater accuracy.