Crossfire Ammunition?

[Intercooler]

   They have always done that but these actually look better than many others with bigger wipes.

About the brass... can it be reused? Would you want these for anything?

  What is your guess on the powder and charge? It didn't seem to have the sonic boom of Power Pistol when it  exits the barrel. I'm real curious what's in there.

[4949shooter]

Looks good enough for me to run it in the Glock, although they may not be worth reloading afterwards! 

I see you're getting a little firing pin wipe as the barrel is dropping out of lock, not that big a deal.  It may cause some firing pin wear over time.

My particular Glock seems to be well supported. I haven't had any bulges with Underwood ammo (at least not yet). I would like a little more feedback though before I try it. Especially for the price.

This will make a nice long range pistol round, which I have use for if deemed safe enough.

[The_Shadow]

They look to be usable but I have to examine them more closely! 

It is either Power Pistol or maybe AA#7
Here is some data I have found;
10mm Auto Handloads
Warning! Notes: A Kimber Model 1911 Stainless Target II with a one-in-16-inch twist, 5-
inch barrel was used for testing loads. Starline brass and CCI 300 Large Pistol primers
used throughout. Maximum overall cartridge length: 1.260 inches; maximum case
length: 0.992 inch; trim-to length: 0.982 inch. Maximum SAAMI pressure: 37,500 psi.
(Handloader Issue #253 - June/July 2008)
Be Alert: Publisher cannot be responsible for errors in published load data.

Barnes 140 TAC-XP over Accurate AAC-7 13.0 @ 1497

[Intercooler]

  Would you think it's compressed to get 1600 out of a 4.75" barrel?

[The_Shadow]

Yes!  Compressed Barnes shows that 13.0 gr loading slightly compressed with the 125 gr TAC_XP @ 105% load density.  The 125 gr is actually shorter than the 140 gr so the 140 has to be compressed a little more using AA#7



TAC-XP bullet lengths
125grain = 0.624"
140grain = 0.682"
155grain = 0.733"

[Intercooler]

It doesn't appear to hurt a thing though.

[The_Shadow]

But we don't know for sure what they are using yet!  Speculating as to what fits the profile of the results! 

[Intercooler]

Milo confirmed all new brass under the coating.

[Intercooler]

What does 10.0 gr's of Long Shot give? I think that is the unknown

[The_Shadow]

I never took the Barnes 140 grain TAC-XP out that far...I worked blindly when developing from unknowns where no data existed.
TAC-XP FB 140 grain pn# 40005 10mm/40S&W 0.400"  8.2 grains of Long Shot @ 1247 fps entered the 4th Jug of water.
Petals opened as designed.  Classic opened petals expanded to 0.7915".  Primer slightly flattened.  Case expanded to 0.4275"

There maybe more room, but careful of the longer bullets by weight so as not to jack up the pressures too high...

BTW here is the results of the Acurate Arms #7
10.7 grains of AA#7 @ 1112 fps three jugs inside 3rd jug of water. Petals opened as designed.  Primer badly flattened. Case expanded to 0.4280"

[Intercooler]

1.8gr's additional Long Shot = 1600 FPS?

[The_Shadow]

Is that what Milo of Crossfire Ammunition said he's using?

[Intercooler]

  Not exactly, but it was mentioned and my guess 

[Intercooler]

 I had one from the first box left and fired it today out of the Limited 4.75". How about this... 1605 FPS/ 801 LBS. Crazy repeatable huh! What's the trick?

   Put these over again too out of the Limited:

HPR 165gr HBFP 1275, 1272, 1260, 1267, 1263. Average = 1267.4 FPS/ 589 LBS. Last time average was 1265 FPS

PPU 180gr JHP 1086, 1068, 1060. Average = 1071 FPS/ 459 LBS



 

 

[The_Shadow]

** Word of caution here**

Just measured the 10mm Black Max cases. Most were .432" with one being .436" to the right. Primers appear flattened but not the worst I have seen. Use with great support only!!!

Of these casings you sent, two of them had a very slight "SMILES" where they were pressed against the feed ramp's most forward edge.  The 0.4360" was the worst of the two.