I trimmed the overall length of the wad down from 2.235 inches to 1.624 and put together three loads in 2-3/4" hulls. Two loads contained one ounce of steel shot and one 1-1/4 oz. of Hevi Shot.
Load #1 based on Lightning Steel #32 subbing the CTPS for the TUWSBL28/CSD100 in a Remington Gun Club hull. It came in HOT at 1,517 FPS and 13,460 PSI I believe if this had been submitted with two grains less powder per Precision Reloadings recipe #120014 it would likely have been a viable load.
Load #2 – based on Precision Reloading #120010 CTPS wad in place of TUWSBL28/CSD100
2-3/4 Federal GM hull
FED209A
32.0 gr Alliant Steel
CTPS wad (no filler)
1 oz. 435 gr. #2 steel pellets
1,507 FPS 10,340 PSI
Load #3 – CTPS wad Hevi Shot
2-3/4 Federal Top Gun hull paper base
FED209A
30.5 gr Alliant Steel
CTPS wad (+ mylar wrap)
1-1/4 oz. 546 gr. #2 Hevi Shot pellets
1,352 FPS 10,480 PSI
While Load #1 is unusable due to excessively high pressure, Loads #2 & #3 are consistent with good velocity. Pretty good for penny wads.