used as front base on Marlin 39A, round barrel, Mossberg 43, 44, 144, 46BT. 35, late models 45, 46,46A 46B with 13/16" bbls.
Savage 1;9, 23, n93F, Heavy BBl, Winchester 75 Targe
 
Used as reasr base on Mossberg 40, Remington 514, Savage 3, 93F, heavy barrel