10mm hand load fired from EAA Witness through four layers of denim. 155 gr Barnes TAC-XP over 8.0 gr of 800-X, new Starline brass, Winchester LP primer. Data is noted in the video and in video description.

Another nice video, thanks...
Do you think you will go to 8.4 grains? Or even more?   

If the case has the room and I don't see any pressure signs as I work up. So far it looks good.

I'm interested to see how the all copper behaves vs. lead core bullets as velocity increases. You often see reduced penetration with lead JHPs as the velocity increases and I've heard with all copper HPs penetration is proportional to velocity.

Quote from: Raggedyman on January 22 2013 09:59:12 PM MSTI've heard with all copper HPs penetration is proportional to velocity.

To a degree, yes.  Overall, no.

Still, I'm interested to find out.

Me too.

Video:




10mm Underwood 135 gr Nosler JHP fired from EAA Witness 4.5" barrel through four layers of denim into calibrated gelatin.

BB calibration: 591.4 fps, 3.3"

Impact velocity: 1,568 fps
Penetration: 7.9"
Retained weight: 80.4 gr
Max expansion: 0.745"
Min expansion: 0.529"

I also posted tests of 9mm 115 gr Hi-Shok and .22lr Aguila 40 gr Interceptor to my channel. In addition to that, I tested the PPU 180 gr JHP bullets over a hand load as well as hand loaded 155 gr TAC-XP. I wasn't able to get good pics of the wound channels so I decided not to post the video but here are the numbers and a couple pics:


I pulled the PPU 180 gr and loaded them right back into their own primed cases over 11.2 gr of AA#7, which generated 1,194 fps. It expanded to 0.668", max, and 0.617" min. Retained weight was 172.5 gr. Unfortunately, it curved down a bit and rode along the table, coming to rest at about 18 3/4". I don't believe this to be the real penetration depth, though.

I also shot a 155 gr TAC-XP loaded over 8.2 gr of 800-X. That generated 1,192 fps and penetrated 14.2". Retained weight was 154.8 gr. Max expansion was 0.759" and min was 0.481". I couldn't get any good pictures of the wound track so I decided not to post a video but I consider the numbers to be accurate.

Now thAT Underwood load I liked!

Doesn't mean I'll stop reloading my 10mm, though.

Not Underwood.

I wasnt talking about the last post, I was talking about the last Underwood test. Sorry it didn't come out right away which test I was referring to.

Quote from: gandog56 on April 04 2013 01:23:17 PM MDT
I wasnt talking about the last post, I was talking about the last Underwood test. Sorry it didn't come out right away which test I was referring to.

Derp. My bad. Sure would be nice if Kevin could get a hold of a bunch of HST to load.


I know I sometimes sound like a broken record on the penetration thing but 11" from the 155 gr XTP is not adequate in my opinion.

Well Underwood had 150 boxes of their 180 gran TMJ's up, I got two boxes of it to try. 0 before hey ran out.

But do you know that this is only the second and third boxes of loaded 10mm ammo I ever bought. Must have shot a few thousand of my reloads.