Having a hard time keep the rifle from moving

[C.E.Smith043]

It is not parallax. The bench is brand new made of 2x6 and is solid. My finger is square on the trigger which is a Jard set at 8 oz.
How to tell if I have the right rear bag ?

2x6 wood will move.

The only thing stable enough to not flex is concrete

 

[Old Navy]

Benchrest shooting. When I get ready to take the shot the crosshairs keep moving around on the target. The front rest is a Shadetree with 3 inch bag and the rear bag is a Protector. I am thinking I need a different rear bag, maybe ? The rifle is a Savage model 12 in 223 with a 30 inch full bull barrel on an HS precision stock..

I have two Model 12 BR rifles and a Shadetree top also. Both my stocks are 2 7/8 wide and will move around unless you tighten up the clamps that squeeze the front. I actually have added spacers between the clamp and bag. I also like to bottom out my joy stick and use the back leg to do the final elevation. Also! My rear bag is a protector doctor bag. It helps to pound the stock down in it when I set up.

 

[rebs]

Thank you guys for all the help

 

[Dave M.]

Benchrest shooting. When I get ready to take the shot the crosshairs keep moving around on the target. The front rest is a Shadetree with 3 inch bag and the rear bag is a Protector. I am thinking I need a different rear bag, maybe ? The rifle is a Savage model 12 in 223 with a 30 inch full bull barrel on an HS precision stock..

Rear bag with ears that are too wide

 

[kris bassett]

In addition to the above responses I’ll ask if the bench top is concrete and stable or plywood and perhaps flexing slightly when you lean forward ?
Added thought, a 30 inch bull barrel may be taking the rifles balance point to far forward making the rear too sensitive.
Jim

After reading this reply I added 3.5 pounds to the rear of my rifle. I can already tell a difference in stability.

Thanks
Kris