Hi all;
I have spent the last few weeks tinkering around with some 9x25 loads in CFE Pistol and Longshot with 147 gr. XTPs. I used DoubleTap's 147 gr. Controlled Expansion as a guideline for judging velocities and pressure signs. I shot the factory stuff from both a 4.6" standard length Lon Wolf barrel and a 6" Lone Wolf barrel.
I originally loaded with 6.5, 6.7, 6.9, 7.1, and 7.3 grains of CFE Pistol. Unimpressed with those loads, and noticing weaker pressure signs than the factory loads, I extrapolated from the data I had and decided 7.6 grains would give me factory velocities. I also loaded 7.8 and 8.0 grains. These two hot rounds gave me serious pressure signs, including a pierced primer in the 8.0 grain loading.
I additionally used some Longshot in 7.7, 7.9, 8.1, 8.3, and 8.5 grain charges.
Except for the two groups of DoubleTap factory ammo, all data used a 4.6" standard length Lone Wolf Barrel. My data is summarized here. If you use this data to work up a load, you assume responsibility for anything bad that happens as a result.
DoubleTap 147 gr. Controlled Expansion, 4.6" barrel:
Low: 1229
High: 1269
Avg: 1250
E.S.: 39.58
Std. Dev.: 13.15
Shot Velocities: 1229 1264 1243 1251 1242 1269 1265 1250 1250 1235
DoubleTap 147 gr. Controlled Expansion, 6" barrel (first group):
Low: 1318
High: 1363
Avg: 1337
E.S.: 44.11
Std. Dev.: 12.72
Shot Velocities: 1335 1318 1337 1335 1349 1340 1337 1331 1322 1363
DoubleTap 147 gr. Controlled Expansion, 6" barrel (second group):
Low: 1312
High: 1353
Avg: 1338
E.S.: 40.35
Std. Dev.: 16.12
Shot Velocities: 1312 1323 1337 1314 1340 1352 1353 1349 1352 1349
6.5 gr. CFE Pistol
Low: 1006
High: 1132
Avg: 1100
E.S.: 126.10
Std. Dev.: 35.79
Shot Velocities: 1006 1094 1101 1132 1110 1105 1124 1091 1115 1125
6.7 gr. CFE Pistol
Low: 1126
High: 1148
Avg: 1134
E.S.: 22.35
Std. Dev.: 7.41
Shot Velocities: 1133 1126 1133 1148 1126 1135 1145 1129 1129 1135
6.9 gr. CFE Pistol
Low: 1136
High: 1175
Avg: 1151
E.S.: 39.63
Std. Dev.: 11.26
Shot Velocities: 1137 1152 1175 1149 1160 1136 1145 1148 1150 1155
7.1 gr. CFE Pistol
Low: 1166
High: 1207
Avg: 1182
E.S.: 41.78
Std. Dev.: 13.6
Shot Velocities 1188 1166 1167 1170 1168 1182 1207 1186 1187 1194
7.3 gr. CFE Pistol
Low: 1198
High: 1224
Avg: 1210
E.S.: 25.97
S.D.: 9.11
Shot Velocities: 1207 1219 1199 1220 1206 1202 1214 1198 1211 1224
7.6 gr. CFE Pistol
Low: 1239
High: 1266
Avg: 1253
E.S.: 2659
S.D.: 7.61
Shot Velocities: 1251 1256 1250 1252 1239 1252 1266 1247 1261 1259
7.8 gr. CFE Pistol
Low: 1267
High: 1291
Avg: 1278
E.S.: 23.94
S.D.: 7.14
Shot Velocities: 1275 1280 1286 1276 1271 1291 1273 1281 1267 1275
8.0 gr. CFE Pistol
Low: 1277
High: 1311
Avg: 1290
E.S.: 34.31
S.D.: 11.87
Shot Velocities: 1277 1286 1281 1295 1297 1280 1277 1305 1289 1311
7.7 gr. Longshot
Low: 1219
High: 1272
Avg: 1244
E.S.: 53.71
S.D.: 13.74
Shot Velocities: 1272 1230 1246 1241 1246 1251 1219 1242 1243 1249
7.9 gr. Longshot
Low: 1250
High: 1280
Avg: 1267
E.S.: 29.23
S.D.: 11.00
Shot Velocities: 1257 1267 1279 1274 1277 1252 1280 1263 1266 1250
8.1 gr. Longshot
Low: 1263
High: 1310
Avg: 1283
E.S.: 46.77
S.D.: 16.40
Shot Velocities: 1290 1310 1284 1306 1273 1283 1289 1263 1267 1265
8.3 gr. Longshot
Low: 1293
High: 1308
Avg: 1301
E.S.: 14.40
S.D.: 4.69
Shot Velocities: 1293 1308 1307 1307 1299 1299 1299 1300 1299 1302
8.5 gr. Longshot
Low: 1300
High: 1334
Avg: 1317
E.S.: 33.98
S.D.: 13.37
Shot Velocities: 1300 1333 1301 1303 1334 1329 1312 1324 1309 1324
For those who are curious, I used 0.2 grains of powder over the published maximum 147 gr. .357 SIG loads as my starting point. Then I worked my way up.
Hope you find this data useful.
Cheers;
-cstarr3
I have spent the last few weeks tinkering around with some 9x25 loads in CFE Pistol and Longshot with 147 gr. XTPs. I used DoubleTap's 147 gr. Controlled Expansion as a guideline for judging velocities and pressure signs. I shot the factory stuff from both a 4.6" standard length Lon Wolf barrel and a 6" Lone Wolf barrel.
I originally loaded with 6.5, 6.7, 6.9, 7.1, and 7.3 grains of CFE Pistol. Unimpressed with those loads, and noticing weaker pressure signs than the factory loads, I extrapolated from the data I had and decided 7.6 grains would give me factory velocities. I also loaded 7.8 and 8.0 grains. These two hot rounds gave me serious pressure signs, including a pierced primer in the 8.0 grain loading.
I additionally used some Longshot in 7.7, 7.9, 8.1, 8.3, and 8.5 grain charges.
Except for the two groups of DoubleTap factory ammo, all data used a 4.6" standard length Lone Wolf Barrel. My data is summarized here. If you use this data to work up a load, you assume responsibility for anything bad that happens as a result.
DoubleTap 147 gr. Controlled Expansion, 4.6" barrel:
Low: 1229
High: 1269
Avg: 1250
E.S.: 39.58
Std. Dev.: 13.15
Shot Velocities: 1229 1264 1243 1251 1242 1269 1265 1250 1250 1235
DoubleTap 147 gr. Controlled Expansion, 6" barrel (first group):
Low: 1318
High: 1363
Avg: 1337
E.S.: 44.11
Std. Dev.: 12.72
Shot Velocities: 1335 1318 1337 1335 1349 1340 1337 1331 1322 1363
DoubleTap 147 gr. Controlled Expansion, 6" barrel (second group):
Low: 1312
High: 1353
Avg: 1338
E.S.: 40.35
Std. Dev.: 16.12
Shot Velocities: 1312 1323 1337 1314 1340 1352 1353 1349 1352 1349
6.5 gr. CFE Pistol
Low: 1006
High: 1132
Avg: 1100
E.S.: 126.10
Std. Dev.: 35.79
Shot Velocities: 1006 1094 1101 1132 1110 1105 1124 1091 1115 1125
6.7 gr. CFE Pistol
Low: 1126
High: 1148
Avg: 1134
E.S.: 22.35
Std. Dev.: 7.41
Shot Velocities: 1133 1126 1133 1148 1126 1135 1145 1129 1129 1135
6.9 gr. CFE Pistol
Low: 1136
High: 1175
Avg: 1151
E.S.: 39.63
Std. Dev.: 11.26
Shot Velocities: 1137 1152 1175 1149 1160 1136 1145 1148 1150 1155
7.1 gr. CFE Pistol
Low: 1166
High: 1207
Avg: 1182
E.S.: 41.78
Std. Dev.: 13.6
Shot Velocities 1188 1166 1167 1170 1168 1182 1207 1186 1187 1194
7.3 gr. CFE Pistol
Low: 1198
High: 1224
Avg: 1210
E.S.: 25.97
S.D.: 9.11
Shot Velocities: 1207 1219 1199 1220 1206 1202 1214 1198 1211 1224
7.6 gr. CFE Pistol
Low: 1239
High: 1266
Avg: 1253
E.S.: 2659
S.D.: 7.61
Shot Velocities: 1251 1256 1250 1252 1239 1252 1266 1247 1261 1259
7.8 gr. CFE Pistol
Low: 1267
High: 1291
Avg: 1278
E.S.: 23.94
S.D.: 7.14
Shot Velocities: 1275 1280 1286 1276 1271 1291 1273 1281 1267 1275
8.0 gr. CFE Pistol
Low: 1277
High: 1311
Avg: 1290
E.S.: 34.31
S.D.: 11.87
Shot Velocities: 1277 1286 1281 1295 1297 1280 1277 1305 1289 1311
7.7 gr. Longshot
Low: 1219
High: 1272
Avg: 1244
E.S.: 53.71
S.D.: 13.74
Shot Velocities: 1272 1230 1246 1241 1246 1251 1219 1242 1243 1249
7.9 gr. Longshot
Low: 1250
High: 1280
Avg: 1267
E.S.: 29.23
S.D.: 11.00
Shot Velocities: 1257 1267 1279 1274 1277 1252 1280 1263 1266 1250
8.1 gr. Longshot
Low: 1263
High: 1310
Avg: 1283
E.S.: 46.77
S.D.: 16.40
Shot Velocities: 1290 1310 1284 1306 1273 1283 1289 1263 1267 1265
8.3 gr. Longshot
Low: 1293
High: 1308
Avg: 1301
E.S.: 14.40
S.D.: 4.69
Shot Velocities: 1293 1308 1307 1307 1299 1299 1299 1300 1299 1302
8.5 gr. Longshot
Low: 1300
High: 1334
Avg: 1317
E.S.: 33.98
S.D.: 13.37
Shot Velocities: 1300 1333 1301 1303 1334 1329 1312 1324 1309 1324
For those who are curious, I used 0.2 grains of powder over the published maximum 147 gr. .357 SIG loads as my starting point. Then I worked my way up.
Hope you find this data useful.
Cheers;
-cstarr3