ta406,
Always "load" the bipod before breaking the shot. Also we found that carpeting or something like that also dampens the jumping affect. Try a Protektor rabbit ear ( if you like more side support on the stock) or a bunny ear ( less side support) with cordura ears. Be sure to use a pure silicon spray to lube the ears before starting your session. Also suggest you fill the bag and ears with the heavy bag sand sold by Sinclair ( get the funnel too!) fill the ears FIRST and use the funnel to help pack the sand into them so they are tight. Then do the bag body the same. You want the ears to support the stock so that it does NOT TOUCH THE BAG BODY. If you need a spacer to get the rear bag higher get the OTTO BAG STABILIZER or make spacers out of different thicknesses of plywood. )F-TR competition websites have some good advice on this and set up since that is basically what you are doing) . Once you have the setup figured out now you have to find how the rifle likes to be shot . Experiment with cheek pressure, shoulder position behind the stock, trigger hand position ( does the rifle like the wrist of the stock gripped or does it like the thumb behind the trigger guard and just "pinch" the trigger between the thumb and trigger finger) ETC. MAKE SURE THE REAR SLING SWIVEL IS REMOVED and the stock slides smoothly in the bag and dosen't skip. Start here first before you look at getting a front rest. Rear bags mentioned above are Protektor bags #749-005-815 (bunny) and 749-005-810 (rabbit) SKIP OTTO bag stabilizer is 749-004-093. These are numbers off the SINCLAIR INTERNATIONAL website. Heavy sand and funnel can be found here also. Hope this helps!