The bar is in the 30-06 and 45-70 stocks, maybe some others. My SS 30-06 had one in it, but I never shot it with that stock set, just the lams.
I put that stock set on the TDC frame and barrel that I just put together for a 20ga turkey gun, the Limbsaver #10018 recoil pad works very well 3" turkey loads without the stock weight.
Tim