Yep. One variant and very commonly used by Inanimate Target shooters
Ewing and Beattie of Canada with Lefevers; Gold & Silver at the 1908 London Olympic Games
Others wore a glove on the leading hand
And the Rowley pad was specifically marketed to raise the DAC
A special determination was made prior to the 1898 GAH at Live Birds, when gun weight was still limited to 8#
Sporting Life, John L. Lequin. secretary of the Interstate Association, writes us under date of Feb. 25, 1898 as follows:
“We have received inquiries from most all directions recently from a number of shooters who are probably desirous of entering the Grand American Handicap next month, concerning the weight of guns, and whether the handhold and recoil pad will be counted as a part of the gun when weighed. The subject has been placed before the Tournament Committee of the association, which committee has decided that the guns will be weighed
naked.”
That “naked” would be minus Hand Guard, Rowley Pad, or recoil ‘boot’.