That load is with a AA12R wad, which is a short wad designed in prehistoric times for the 1 3/8 oz. and 1 1/2 oz. short magnum 12 ga 2 3/4" shell. With lighter payloads it gas seals poorly, thus the low pressure result with 1 oz in the 2 1/2" hull. It's a lousy wad and will make a lousy load. Forget it.
Universal is on the slow side for 1oz. 12 gauge. Similar to Unique. They can't test and publish everything, and Hodgdon's data is on the old side at least much of it.
They do publish this for a Federal Gold Medal and 1 1/8 oz.
Winchester Super Hcp 19.4 Ched. 209 Fed. 12SO 6,400 PSI 1,145
My concern is that it would fit in the hull. I use the CB 2100 which is a clone of the 12S0 and it works perfectly with ONE OUNCE and a powder of similar bulk as 19.4 of SH. I only use the wads intended for straight wall hulls with the Federal shells.
Not everything these guys publish is actually practical. It may take a 12S3 to make this even work.
A few days ago, last I checked, Ballistic Products had the Cheddite 209 primers in stock and Grafs had Super Handicap.
EDIT: Now that I think about it, I bet the above mentioned load would work in a TOP GUN hull. Use the newer ones with the plastic base wad.
Last edited by Shotgunjones; 07/16/22 04:19 PM.
