Tested some DoubleTap, Buffalo Bore and Corbon today

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intercooler

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10mm Corbon 180gr BCSP 1300 FPS (Match 4.75") 1202, 1188, 1192. Average = 1194 FPS/ 569.68 LBS
10mm Corbon 135gr JHP 1400 FPS (Match 4.75") 1444, 1426, 1463, 1476, 1472. Average = 1456.2 FPS/ 635.52 LBS

.357 Magnum Buffalo Bore 158gr JHP 1475 FPS (GP-100 4") 1409, 1445, 1403, 1450, 1394. Average = 1420.4 FPS/ 707.67 LBS. First 700 LB load out of my GP-100 and it was a sonic blast!
.357 Magnum DoubleTap 158gr JHP 1400 FPS (GP-100 4") 1420, 1425, 1420, 1446. Average = 1427.75 FPS/ 715.01 LBS. Wowser... strongest ever and if I didn't shoot it and see it with my own eyes I wouldn't believe it!!!

9mm DoubleTap 115gr +P JHP 1395 FPS (XD 4") 1362, 1359, 1350, 1393, 1384. Average = 1369.6 FPS/ 478.89 LBS
9mm DoubleTap 124gr +P JHP 1295 FPS (XD 4") 1291, 1320, 1335, 1317, 1314. Average = 1315.4 FPS/ 476.31 LBS
9mm Buffalo Bore 115gr +P JHP 1300 FPS (XD 4") 1326, 1342, 1333, 1333. Average = 1333.5 FPS/ 453.98 LBS
9mm Buffalo Bore 115gr +P+ JHP 1400 FPS (XD 4") 1421, 1398, 1395, 1420. Average = 1408.5 FPS/ 506.48 LBS
9mm Buffalo Bore 124gr +P 1225 FPS (XD 4") 1258, 1281, 1264, 1251, 1278. Average = 1266.4 FPS/ 441.48 LBS
9mm Buffalo Bore 124gr +P+ 1300 FPS (XD 4") 1332, 1316, 1373, 1358. Average = 1344.75 FPS/ 497.80 LBS
9mm Buffalo Bore 147 +P+ 1175 FPS (XD 4") 1192, 1161, 1210. Average = 1187.66 FPS/ 460.31 LBS
 
wow, dt 9mm load is 10gr. lighter, 100 fps slower than a top 10mm load from cor-bon!
 
Yes, cor-bon 10mm ammo is weaker than real 10mm ammo, but high priced. Thier 9mm ammo and 45acp and 38 spl is good stuff though.

Many ammo makers say and claim its because at true 10mm speeds the bullets break up, i say then use the appropriate bullet.
 
Still, the 10mm non+P pushes a 180gr slug as fast as 124gr +P+ 9mm.

Granted, different barrel lengths.
 
There is no +p 10mm. Its either true 10mm or 10mm in name only like with the big three or four.
 
Fair enough.

"At or below normal 10mm pressures pushes a beyond-all-regulation +P+ 9mm. . .
 
For 9mm, I'll stick with 147gr HST or Gold Dot.

Really BB, DT, and Underwood only provide woods rounds for me with their hard cast loads.
 
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