For the DT AMMO lovers on THR!

Status
Not open for further replies.
CZF

CZF

Member
Joined
Jan 6, 2003
Messages
2,034
Maybe something you have not seen yet??
468257-big.JPG



http://p201.ezboard.com/fczechpistols82792frm69.showMessage?topicID=158.topic



468347.JPG
 
468255-big.JPG



Wow! 200gr .40S&W!

God I hope the aren't prone to any setback or even a fully supported chamber is toast.
 
at standard pressures?

I still wonder how Mike can send such heavy bullets at such velocities without exceeding standard pressures for the .40 SW. Maybe an "ancient Chinese secret?" Anyone know of independent confirmation of the pressures?
 
Isn't most .40 S&W already loaded at near max pressure to begin with? Maybe tapping into that last bit would keep it under the serious pressue numbers while still being able to be called standard pressure?
 
My understanding is that DT achieves the high velocities by keeping the pressure within SAAMI limts, but somehow is able to extend the duration for a much longer time. Apply the same force over a longer period of time results in greater acceleration and max velocity. How he does it I do not know. Blended powders?

I have shot a couple of mags of the 200 gr XTP and FMJ in .40 S&W and had no problems in my G23. Likewise with the 165 gr and 155 gr. But, they are snappy! the trigger guard really bangs up my trigger finger from the sharp recoil. I did not observe any difference in the spent cases from something like the S&B 180 gr or UMC 180 gr.
 
So that's the Hornady XTP. I had wondered what brand it was, the website just said "controlled expansion JHP" but I thought it looked like the XTP.

I'm having trouble deciding which of the .40 loads to order for my Hi-Power. The Gold Dots are supposed to be really good at expanding through clothing, better than the XTP. Both should penetrate well, though the extra velocity should make the Gold Dot petals bend over backwards and therefore penetrate deeper. It looks like this load is a winner. That puts it on par with the DoubleTap .45 ammo.
 
How does 10mm in G29 compare to .40 in G23?

VitaminG,

I have heard that the 10mm looses a lot of velocity going from a full length G20 to the shorter barrel of the G29. Do you have any evidence either way?

I might be persuaded to get a G29 if the velocities held up. DT has some awesome 10mm loads, including hardcast!

According to DT, their 200 gr. 10mm achieves 1250fp, out of the G20, while the 200 gr .40 S&W achieves 990fps from a G23 and 1100fps from a G22. Perhaps the G29 would then give around 1140fps?
 
As much of a fan of Double Tap as I am (it's in my carry gun and my home defense gun) I see the big drawback of that round being the XTP bullet. XTP's aren't just controlled expansion, they're more like no expansion, or slight expansion if you're lucky. The only way I've found to get them to expand reliably is to overdrive them. That round at 1050 fps is going to act like FMJ unless they've done some major changes to their bullets since I was testing them. I still handload with XTPs often, because they're quite accurate, but I haven't tested them in years. Back when I did, I tested them in everything from ballistic gelatin to hogs and they failed to expand most of the time.
 
Plink
About the XTP rounds.
I can say I hasve used Mikes DT 200gr XTP-HP's on 3 deer. Pistol was a G20(10mm) with a KKM 6" barrel. I do not know about expansion. All three deer had complete penetration.

This combination is very accurate, and has woked great on Deer.

The 200gr XTP-HP's are my general woods carry round's(camping, hiking etc) with DT 135gr JHP's(1600fps) for night stand. When used for these thing, the G20 wears the standard Glock barrel.


Mikes list's the 200gr XTP-HP as 1250fps from a standard G20 barrel.
Just wondering of your testing, was with the 10mm DT XTP-HP loads
 
I wish DT would make some (*gasp!*) downloaded .44 Magnum SD loads. Honestly, full power .44 Mag isn't hard to find. Even run-of-the-mill hunting stuff clocks over 1,300 fps with a 240 grain bullet (most of the time; I've found stuff going around 1,180 that's more pleasant to practice with).

I think a 200 grain bullet at 1,250 or a 240 grain bullet at 1,100 (both JHP) would do the trick for a "general purpose" .44 Mag round. Not too poweful that it's going to beat you up, but enough wallop for deer-sized game still. The first load I described is down into the 10mm perfomance envelope almost, so out of a big steel revolver it should be pretty soft shooting.
 
Blacklabman, I didn't test any 10mm's but if the .40 XTP is like the other XTPs that I tested, driving it fast enough got them to expand. I never had reliable expansion in the 1000 fps range though, like their .40 is being driven. I'd assume they would expand at 10mm velocities, but when they do, it's pretty late in their travel, which means that they miss the opportunity to damage a lot of tissue. I know that driving their 9mm to .38 super levels gave quite nice expansion, but that's a bullet that is supposedly designed to expand at subsonic velocities (which it doesn't). For woods carry, the deep penetration is a good thing. At the very worst, you end up with a blunt tipped FMJ that penetrates well.
 
Status
Not open for further replies.
Back
Top