We have a Remington 700 SPS .308 Win which has a synthetic plastic stock. I would like to reduce the recoil a little bit more for my wife. It already has a brake and recoil pad. I heard that you can reduce recoil a little by adding weight. What do you think would be a good way on doing this? I read about adding sand, BBs, lead, and molding clay. About how much weight should I add for it to make a difference? I don't mind if it's heavy as it's only for bench rest shooting. Also I would prefer the weight to be removable if possible as we will be getting another stock in the future.
Also no sarcastic comments please. I come here for advice and don't need the crap.
The whole butt stock is hollow which is a lot of space to fill.