I have worked up some loads for my TC encore carbine 44 mag 12" barrel, and the same frame with a 44 mag 12" barrel that I had a smith cut to 6". The 6" version I shoot as a pistol.
I used the exact same loads for the 6" barrel as I used for the 12" barrel.
1] 330gr WNGC water cooled wheel weight cast bullet, new starline cases, 1.860 OAL, Win primer, H110 20.5gr.
In the 12" carbine, these loads chronographed an average 1284.8 fps. In the 6" barrel, the average speed was 1676.5 fps.
The SAME LOAD almost 400 fps faster in a barrel 1/2 the length?
2] Exact same as above except for Lil'gun 18.5 gr.
In the 12" carbine, average speed was 1435 fps. In the 6" barrel the average speed was 1421 fps.
Why the extra velocity with the H110 load and short barrel? The bullets are sized .430 I have not slugged either bore. I double checked and triple check my notes, and the aveage speed for the 12" barrel is correct. I could verify this, as I had worked up H110 loads from 19.5 to 21.5 grains in 1/2 grain increments, and the speeds corresponded with the loads.
On a side note, this is the 1st time I have shot the encore in pistol form. It is fun. The Pachmayr grip is very comfortable and the ball of fire is quite something. Getting a bloodied trigger finger after the 5th shot was no fun, but 10 layers of tape over the cut enabled me to keep shooting.
