Speer 200 GDHP wetpack/Denim tests

Started by 475/480, September 03 2013 10:32:23 AM MDT

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475/480

Got to the land this weekend and shot some of the Speer 200gr GDHP at 1050 fps and 1180 fps into wetpack and 4 layers  of denim. Even at 1050 fps the petals sheared off of the bullets  ???.
I am starting to wonder if the marks on the bullets (where the machine clamped onto the bullet to pull them ) went in deeply enough to effect the performance.
Top row 200gr GDHP at 1180 fps-Weights=184.3-196.3- 198.5
Bottom 200gr GDHP at 1050 fps- Weights = 193.6 -197.3- 185.8
Sean

The_Shadow

Quote from: 475/480 on September 03 2013 10:32:23 AM MDT
I am starting to wonder if the marks on the bullets (where the machine clamped onto the bullet to pull them ) went in deeply enough to effect the performance.

That is what I suspected looking over the samples ROME had sent me to test...Jello-Shots (pun intended) :)) may show a better observation and performance. 

Thanks for posting your results from the wet pack, the bullets will still make a nasty wound judging for the results. :o
The "10mm" I'm Packin', Has The Bullets Wackin', Smakin' & The Slide is Rackin' & Jackin'!
NRA Life Member
Southeast, LoUiSiAna

Raggedyman

Nice. Thank you. I'm really interested to see how they perform in gelatin. I'm encouraged by the fact that they were able to expand at low velocity and into denim, though.

ETA: Way better weight retention this time.

475/480

FWIW : Penetration was 8"-9" in the wetpack.

Sean

Raggedyman

Thank you. So it looked like the penetration was similar to without denim? In water and gelatin I usually see less penetration without denim. I believe that is because the bullet opens earlier and wider without the denim plug.

Raggedyman

#5
I tested the subsonic 200 gr Gold Dot load today. It's getting late so I won't be taking pics of the gelatin or putting a video together today. Should be some time tomorrow. I am uploading a just for fun video right now so look at my channel if you care. Here's the numbers on the 200 gr GDHP:

7.6 gr of 800X
1.255" COAL
CCI LP primer
1,065 fps
12.6" penetration


You'll have to wait until tomorrow for expansion and retained weight figures.

Intercooler

By Friday The Shadow should have my batch that averaged 1166 FPS. That should tell us how much 800-X Kevin put in there (8.8?).

Raggedyman

I made up the ladder but I didn't get a chance to chrono any of it today. I did test 175 gr Silvertip, Underwood 165 gr GD, and Nugent 180 gr JHP as well. I'll post results and video tomorrow.

475/480

Sounds good , 12"+ is decent penetration.


Sean


The_Shadow

Very nice Great test! :D  Faster Faster!  1225 fps would be a great test shot...Please  8)
The "10mm" I'm Packin', Has The Bullets Wackin', Smakin' & The Slide is Rackin' & Jackin'!
NRA Life Member
Southeast, LoUiSiAna

Raggedyman

I will work up as high as I feel confident but I wanted to get that one done first because it didn't need any workup and it should provide a good baseline. Plus, I wanted to see if the 200 gr GD would open at that speed since the 200 gr XTP didn't.

Raggedyman

#12
Sorry, guys but unless you can locate someone in the Phoenix area that is willing to push these bullets faster and shoot them through their own gun, it doesn't look like I'm going to go much faster I did a workup today and started getting bulged brass at 8.6 gr of 800-X and 1,159 fps. I don't feel comfortable pushing any faster in my pistol. I'm happy to let some other crazy bastidge shoot into my gelatin, though.

Now what should I do with the rest of these boolits? I can do a workup with AA #9 but I doubt I'll be able to go much faster. 800-X seems to be THE powder for pushing heavy bullets to high velocities.

The_Shadow

Hey that's totally cool if you don't want to push any higher. 8)  Are you running yours thru a Glock with a factory barrel?  ???  if yes you will see some bulging hopefully No Smiles!  Expansion will fill the chamber at 0.4340" if it is a factory barrel.
I settled on 9.2 LongShot using a CCI350 COAL of 1.255" the last ones I sent Intercooler ran 1230 fps as compared to the 9.4 grain load which ran 1265 fps in both our guns...mine being the S&W1006 5". 
The "10mm" I'm Packin', Has The Bullets Wackin', Smakin' & The Slide is Rackin' & Jackin'!
NRA Life Member
Southeast, LoUiSiAna