Originally Posted By: drscottI use one for load development and initial sight in. I to have seen a change in point of impact when I go to my bipod or sticks so I always check it. I don't feel like I get a true sight picture when using the sled so maybe for me it is a parallax issue, not sure but I learned the hard way to check my guns.
drscott
I have also experienced POI shift Lead Sled to bags or off of sticks, a bipod or tripod.
I attribute the shift to the lead Sled not allowing the rifle to move in recoil as it would even off of bags, but I have wondered if the shift might be attributable to parallax as well.
I haven't tried a Lead Sled with light recoiling rifles like a 223 or 243, only heavier calibers. In the end I found I could shoot off of a proper bag set up as well as using the Lead Sled and I'm not particularly recoil shy, so gave up on the Lead Sled and all of the humping of extra crap just to sight in or test a load.
BTW, for sighting in or for testing loads with big boomers, like 458wm, a standing height bench allows shooting almost as well as a sitting bench but because you are standing you absorb the recoil at the waist and felt or perceived recoil is greatly reduced compared to sitting. I am sure this would apply to all cartridges, but the only rifle I own which has recoil sufficient to make me go to the trouble of a standing bench is 458wm. For 458wm class recoil you need to hold the forearm and rest your hand on the front bags to avoid either a bloody nose or Weatherby eye - and this applies to a sitting bench as well. Also, FWIW, if confined to a sitting bench, the higher you can set up the bags and the straighter you can sit the less perceived or felt recoil you will experience.
JPK