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…
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
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.
I carry Buffalo Bore 21C/20, 10mm, 220 GR, Hard Cast, Flat Nose in my G-20 when in bear country to back up a big bore long gun and while its no were near a good .454 or .480 loading in a revolver its a platform I have total expertize with and can fire well under stress.
This is some hard cast bullets and I only shoot a limited amount and clean. All my practice loads are FMJ less 20 grains at the same velocity and have the same point of impact.
How does your brass look. I reload for everything and was considering getting a Storm Lake barrel for the 10mm for hot loads and a heavier recoil spring.
Pat
That Hornady pdf is junk. Its easy to claim your product “performs” at those velocities when you don’t define what performance is exactly. Only one way to really know. Someone has to do some gel testing & post pics.