Longshot will get a bit more velocity, and be useful for up to 1 1/2 oz turkey loads. Not sure of the compatability of the latter for .357. There are loads, but I have no experience. HS-6 is a fine .357 powder, but will not achieve maximum velocities. I use this powder for heavy 1 1/8, 1 1/4 oz 12 guage
Longshot makes nice almost full power .357 loads. (call it 3/4 power or so, it gives up about 200 fps to H110 across all bullet weights )
Some Hodgdon data for .357 with a 158
Bullet Powder Powder Len Start Gr Vel Pressure Max Gr Vel Pressure
158 GR. HDY XTP Hodgdon H4227 .357" 1.580" 14.5 1402 34,600 CUP 16
1520 42,600 CUP
158 GR. HDY XTP Winchester 296 .357" 1.580" 15 1418 28,600 CUP 16.7
1591 40,700 CUP
158 GR. HDY XTP Hodgdon H110 .357" 1.580" 15 1418 28,600 CUP 16.7
1591 40,700 CUP
158 GR. HDY XTP Hodgdon Lil'Gun .357" 1.580" 16 1504 24,100 CUP 18
1577 25,800 CUP
158 GR. HDY XTP Hodgdon Longshot .357" 1.580" 7.3 1258 31,700 CUP 8.4 1394 43,200 CUP
158 GR. HDY XTP IMR SR 4756 .357" 1.580" 5 896 17,500 PSI 6.5 1146 29,900 PSI
158 GR. HDY XTP Hodgdon HS-6 .357" 1.580" 8 1182 28,000 CUP 9.5
1375 41,900 CUP
158 GR. HDY XTP Winchester AutoComp .357" 1.580" 6.2 1058 25,700 PSI 7 1181 33,200 PSI
158 GR. HDY XTP Hodgdon Universal .357" 1.580" 5.8 1026 32,100 CUP 6.3 1133 39,300 CUP
158 GR. HDY XTP Winchester 231 .357" 1.580" 6.2 1108 33,700 CUP 6.9 1220 40,000 CUP
158 GR. HDY XTP Hodgdon HP-38 .357" 1.580" 6.2 1108 33,700 CUP 6.9 1220 40,000 CUP
158 GR. HDY XTP IMR SR 7625 .357" 1.580" 4.3 812 16,700 PSI 5.8 1075 29,600 PSI
158 GR. HDY XTP IMR PB .357" 1.580" 3.7 747 18,800 PSI 4.9 984 31,700 PSI
158 GR. HDY XTP Hodgdon Titegroup .357" 1.580" 5.4 1135 32,600 CUP 6.1 1229 41,900 CUP
158 GR. HDY XTP IMR 700-X .357" 1.580" 4.5 949 21,900 PSI 5.7 1149 31,200 PSI
158 GR. HDY XTP Hodgdon CFE-PISTOL .357" 1.580" 6.1 1107 26,100 PSI 6.9 1233 33,700 PSI
158 GR. HDY XTP Winchester 244 .357" 1.580" 5.5 1061 26,200 PSI 6.2 1204 33,100 PSI
Hodgdon lists data for Longshot in .357 for 110s to 180s.