PDX1 9mm point of failure?

[Thompsoncustom]

I was wondering if anyone has pushed the 124gr PDX1 bonded bullet to fast to the point it has come apart, in either a long handgun or a carbine? If so any idea how fast it was going and expansion. Seems like it would be a good round I'm just wondering what it's limits are.

 

[meanmrmustard]

I was wondering if anyone has pushed the 124gr PDX1 bonded bullet to fast to the point it has come apart, in either a long handgun or a carbine? If so any idea how fast it was going and expansion. Seems like it would be a good round I'm just wondering what it's limits are.

I used it in a Hi Point carbine last year to kill a deer. Worked great, was very accurate, and grouped nice in that rifle with a 1.5-4.5x34mm scope.

 

[Thompsoncustom]

ya the round looks really mean. Did you recover the bullet from the deer?

 

[tacxted]

i would like to hear more about your kill. ive always wondered how 9mm would do for medium sized deer, of course deer are different sizes...

if im not mistaken the pdx line is preceded by the black talon line of defensive ammo. black talon got alot of media attention way back when..

 

[rcmodel]

I'm just wondering what it's limits are.

How would you push it faster then the factory load it is loaded in?

I am not aware of the PDX bullets being sold separately for reloading beyond it's design perimeters.

And the factory loads for sure won't exceed that in anything.

rc

 

[481]

The PDX is a bonded bullet and I doubt that it can be pushed fast enough from a 9mm pistol (staying within safe limits) to cause it to fail in that manner - e.g. "coming apart".

 

[Thompsoncustom]

Ah well you could pull the bullet but I just meant achieving higher velocity's with a longer barrel.

 

[meanmrmustard]

ya the round looks really mean. Did you recover the bullet from the deer?

Yes, sadly I had no phone for picture. It had expanded beautifully, was lodges between fat layer and just underneath the hide at 60 yards on a fairly large doe. My fiancé was using my .223, and since the HP was the only other rifle I had at deer camp, I zeroed with the 124+p, limited myself to closeish shots only, and the bullet performed great. Double lung, broken rib, and it had mushroomed to .45 cal or better. Definately better choices for a deer cartridge, but it worked in a pinch.

So, suffice it to say, the HP and PDX make a deadly pair. In my experience, anyway.

 

[Thompsoncustom]

Well I decided there only one way to know for sure and that's to go buy some and do some testing.

so from left to right is goes 800fps,1000fps, Factory, 1350fps, 1450fps.




This was purely a fun test but it is kind of neat to see how it preformed at different speed.

If your wondering I pulled the bullets and reloaded them

 

[cz75bcrazy]

that one at 800fps looks really mean, whats the expansion on them?

 

[NG VI]

Neat!

 

[meanmrmustard]

The "factory" one looks strikingly similar to the bullet yanked outta the doe I shot.

 

[Certaindeaf]

Seems like those critters hold up good. What did you shoot them into?

 

[481]

Well I decided there only one way to know for sure and that's to go buy some and do some testing.

so from left to right is goes 800fps,1000fps, Factory, 1350fps, 1450fps.

Wow, I never thought that I'd see a PDX1 pushed that fast (1450 fps), but it is nice to see that they won't come apart even at those speeds.

 

[RinkRat]

^^^^ Thompsoncustom ^^^^

what did you shoot them out of and into what medium ??

 

[Thompsoncustom]

I shot them into a large garage can filled with water from a ladder. All velocity's where calculated by quickload.

Average expansion from left to right

.594, .589, .679, .644, .581

 

[481]

I shot them into a large garage can filled with water from a ladder. All velocity's where calculated by quickload.

Average expansion from left to right .594, .589, .679, .644, .581

800fps, 1000fps, Factory(1200fps), 1350fps, 1450fps

Thompsoncustom,

Using the Schwartz bullet penetration model (it's found in the book in my sig line) which uses water test data like yours (all you need is the bullet's diameter, mass, and impact velocity), you can predict penetration depth and mass of the perm. wound cavity for each 124 gr. PDX1-

1.) .594"/124 gr/800 fps: Pen. = 9.19 in., PCM = 1.25 oz.

2.) .589"/124 gr/1000 fps: Pen. = 10.99 in., PCM = 1.47 oz.

3.) .679"/124 gr/1200 fps: Pen. = 9.02 in., PCM = 1.61 oz.

4.) .644"/124 gr/1350 fps: Pen. = 10.88 in., PCM = 1.75 oz.

5.) .581"/124 gr/1450 fps: Pen. = 14.19 in., PCM = 1.85 oz.

 

[Thompsoncustom]

wow I never knew there was a formula for penetration that's great to know, thanks.

Any idea how it compares to real world results?