10mm Auto: My final answer

[Swatdude1]

My previous thread was closed (I am assuming) because it took a serious detour. I just wanted to follow up and let you all know I settled on Underwood Ammo's 180 grain loading of Hornady's XTP bullet. This is the only full power 10mm I could find that was loaded with a bullet actually designed for the higher velocity this cartdridge is capable of. The velocity ranges are provided by Hornady here...

http://www.hornady.com/assets/files/...ts_handgun.pdf

Doubletap might provide the same round, but I could not find where they specifically call out the Hornady XTP bullet.

[operator81]

Double Tap is using Nosler now instead of Hornady.

[Jack-O]

wow, the 180gr has a remarkably versatile range of velocity usefulness.

I would have thought the 200 would have been better at slightly higher velocities but I guess the range it has makes perfect sense.

Underwood gets remarkable customer reports and accuracy claims are right on target with field reports. decent pricing as well.

I'd say you made a very sound choice.

[Alaskapopo]

I ended up getting a Glock 20SF gen 3. I am going to start reloading for it. I am looking at some 200 grain FMJ's for woods use and some 180 and 200 grain JHP's.
Pat

[WS6]

Aren't XTP's known for insane penetration, or at 10mm velocity will they open up larger?

[Alaskapopo]

Aren't XTP's known for insane penetration, or at 10mm velocity will they open up larger?

The XTP is not a great self defense bullet for humans because it has moderate expansion and it does not always expand after heavy cloth. But for hunting larger game its moderate expansion and deep penetration is a good thing. For personal defense with a 10mm I would want a 180 grain JHP going about 1100 fps that was designed for that velocity. But honestly for personal defense I prefer my Glock 17.
Pat

[Swatdude1]

Does anyone know if Nosler or Barnes publishes velocity ranges for their bullets like Hornady? I found that Hornady pdf extremely useful.

[BuckskinJoe]

The XTP is not a great self defense bullet for humans because it has moderate expansion and it does not always expand after heavy cloth. But for hunting larger game its moderate expansion and deep penetration is a good thing. For personal defense with a 10mm I would want a 180 grain JHP going about 1100 fps that was designed for that velocity. But honestly for personal defense I prefer my Glock 17.
Pat

Yep, that pretty much describes the now discontinued Federal load, that the FBI (if I recall correctly) used to replace the too-hot Norma ammunition.

A good 180 grain JHP in .40/10mm at transonic speeds describes, accurately, the best current offerings in .40. There is no evidence that the hotter 10mm offers any terminal advantages over the .40. On the contrary, the terminal ballistic testing results I have seen indicate the hotter 10mm has only disadvantages.

Oh well, those who disagree will continue to disagree, regardless.

[Jack-O]

Does anyone know if Nosler or Barnes publishes velocity ranges for their bullets like Hornady? I found that Hornady pdf extremely useful.

I think barnes will tell you that info if you email them or something.

I'd like to see more of those spec sheets from hornady actually. I couldnt find them by browsing the site.

I kinda got a hankerin to see what that 125gr will do at 10mm velocity.

[Alaskapopo]

Yep, that pretty much describes the now discontinued Federal load, that the FBI (if I recall correctly) used to replace the too-hot Norma ammunition.

A good 180 grain JHP in .40/10mm at transonic speeds describes, accurately, the best current offerings in .40. There is no evidence that the hotter 10mm offers any terminal advantages over the .40. On the contrary, the terminal ballistic testing results I have seen indicate the hotter 10mm has only disadvantages.

Oh well, those who disagree will continue to disagree, regardless.

The time I want more power is for critters.
Pat