Home Forums Hunting & Shooting Handguns .40 Super anyone?

I could probably find some use for a 165 gr Gold Dot @ 1650 fps or a 220 gr Hardcast @ 1350 fps.

https://www.youtube.com/watch?v=DtvYcZiuaJM

Just buy a 10mm. I'm already getting 1400 out of 200gr XTP with handloads and a maximum charge of AA-9.

Good luck on finding .40 Super ammo or brass to neck down to make it. And not to mention the fact that a Glock 20 Mag holds 15 rounds versus a Glock 21 mag, which only holds 13 rounds. JMO, though, fr whatever it's worth.

Dream squasher, lol. However you do make valid point.

I think with the 40 super all you need is the conversion barrel.(?)

Good info, thanks for taking the time and effort to share your test.

The 40 Super uses a small primer, and better case support in the chamber. Having had a 10mm and gotten smilies/bellies in the brass, I kind of like the strength attributes of the 40 Super.

On the other hand, for cast lead, I prefer the 10mm case that only exposes the (gas-checked) base of the bullet to high pressure gasses.

This isn't my video, I just snatched it off Youtube and posted it because the performance numbers were better than most of the exaggerated stuff I often see quoted without verification.

Underwood Ammo sells loaded 40 Super ammo. Ammo is not much of a problem. 40 Super brass is made from 45 Win mag brass if memory serves.

http://www.underwoodammo.com/40super.aspx

Pretty good numbers, for sure, but not enough better than my 10mm handloads (which greatly resemble CHLinstructors loads, btw) to warrant a different gun for me. For some, perhaps it makes all kinds of sense. Me, if I cant kill it and stop it with my hot rod 10mm loads or my 329PD with heavy bullet loads I am thinking the next logical step to be a rifle of some kind.

And it is already difficult enough to find 10mm brass, I don't want to start up with another round for which brass is not too common. Been stockpiling 10mm brass, probably have enough to last a good long time now.

Thanks for the link and info, though. Always fun to see what someone has hot rodded and come up with. Mo speed be mo betta, almost always.

HOW? All I can muster safely is 1150 fps or so


Cartridge : 10 mm Auto (SAAMI)
Bullet : .400, 200, Hornady HP/XTP 40060
Useable Case Capaci: 10.808 grain H2O = 0.702 cm�
Cartridge O.A.L. L6: 1.260 inch = 32.00 mm
Barrel Length : 5.0 inch = 127.0 mm
Powder : Accurate No.9

Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !

Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
% % Grains fps ft.lbs psi psi % ms

-20.0 98 10.40 1080 518 32317 4494 74.4 0.557 !DANGEROUS LOAD-DO NOT USE!
-18.0 101 10.66 1111 548 35131 4665 75.9 0.537 !DANGEROUS LOAD-DO NOT USE!
-16.0 103 10.92 1143 580 38230 4835 77.4 0.518 !DANGEROUS LOAD-DO NOT USE!
-14.0 106 11.18 1175 613 41616 5003 78.9 0.499 !DANGEROUS LOAD-DO NOT USE!
-12.0 108 11.44 1207 647 45444 5168 80.3 0.481 !DANGEROUS LOAD-DO NOT USE!
-10.0 111 11.70 1240 683 49659 5330 81.7 0.463 !DANGEROUS LOAD-DO NOT USE!
-08.0 113 11.96 1274 721 54341 5487 83.1 0.447 !DANGEROUS LOAD-DO NOT USE!
-06.0 116 12.22 1308 760 59582 5639 84.4 0.430 !DANGEROUS LOAD-DO NOT USE!
-04.0 118 12.48 1343 801 65481 5785 85.7 0.415 !DANGEROUS LOAD-DO NOT USE!
-02.0 120 12.74 1378 844 72158 5924 87.0 0.400 !DANGEROUS LOAD-DO NOT USE!
+00.0 123 13.00 1414 888 79763 6054 88.3 0.385 !DANGEROUS LOAD-DO NOT USE!
+02.0 125 13.26 1451 935 88491 6176 89.5 0.370 !DANGEROUS LOAD-DO NOT USE!
+04.0 128 13.52 1489 985 98591 6286 90.7 0.356 !DANGEROUS LOAD-DO NOT USE!
+06.0 130 13.78 1528 1036 110395 6385 91.8 0.343 !DANGEROUS LOAD-DO NOT USE!
+08.0 133 14.04 1568 1091 124350 6468 92.9 0.329 !DANGEROUS LOAD-DO NOT USE!
+10.0 135 14.30 1609 1149 141078 6534 93.9 0.316 !DANGEROUS LOAD-DO NOT USE!

Was wondering the same thing. Hodgdon's shows 1170 fps at 35 kpsi which is just above what I get out of my Para 16/40/10.

No way can 1400 fps be achieved with a 200 grain XTP without excess pressure in the 10mm. The 40 Super has greater powder capacity.

That is what I was thinking, John

I am perfectly happy with my 180's at 1375, But my pistol has a fully ramped barrel, so fully supports the case head. And even at that I use new Starline brass with this load.

As I said before if I need more, I need a rifle.

I don't want to "hot rod" my 10mm, but Buffalo Bore and Double Tap sell ammo hot enough for me.

That said, a round similar to 10mm, but with a stronger case might be something of value.

Of course 1375 is really leaning on the 10mm.

1300 is spec