The sled has enough weight to help reduce the recoil on most calibers. Do not use excessive weight to eliminate recoil, just enough to reduce it to a more pleasant and manageable recoil to prevent any stock/rifle damage.
Pictured is my SAKO M995 in .300 WM. I rigged mine with a set of $1.99 straps just enough to secure rifle and put my snow chains into better use.
I voted for my "FREEDOM", "GUNS", and "MONEY" - keep the change - UNK.
"I am always proud of my country!"
"Leadership Rule #2: Don't be an edited." - Maj Gen Burton Field.
I shoot off of a lead sled alot, but they are hard on stocks, especially wooden stocks. I fired my 300 ultra mag about 30 to 40 times on the lead sled when the thumbhole stock broke where your thumb goes thru the hole. Got it fixed pretty cheap but it doesn't go on the sled anymore.