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WST LOAD for PCC


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Just finished up my 1st PCC build with 9mm KAW valley 16" barrel, I have a 8lb jug of WST and a bunch of 125 grain Blue Bullets.Does anyone have experience with this combination? I have 9mm load with WST (minor) that I have used that is good in my STI 5", thinking about down loading it and starting at 3.3gr @ 1.120. Also have N320, CFE pistol  & AutoComp.

 

dcalvert

 

 

 

Dcalvert

 

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My book says 4.8grs of WST goes 1,025 out of a 5" pistol barrel, so you will have to drop that load a little.  I am not sure that 3.3 will be enough.  

 

When going super light, be careful not to stick a bullet in the barrel.  It may be safer to start with a load that is faster than your goal (while still way below max load) and work your way down.

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Good point L9X25, my 5" STI with SVI barrel is 1001 FPS with 3.8gr WST 125 Blue B. 125 PF. Primers are a litte flat. Maybe all just chronometer few of these to get a baseline. Thinking primers mar get flatter. Definitely don't want one in the barrel !

 

dcalvert

.

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  • 3 weeks later...
  • 2 weeks later...
On 6/10/2018 at 12:27 PM, dcalvert said:

Just finished up my 1st PCC build with 9mm KAW valley 16" barrel, I have a 8lb jug of WST and a bunch of 125 grain Blue Bullets.Does anyone have experience with this combination? I have 9mm load with WST (minor) that I have used that is good in my STI 5", thinking about down loading it and starting at 3.3gr @ 1.120. Also have N320, CFE pistol  & AutoComp.

 

dcalvert

 

 

 

Dcalvert

 

Any update with the WST?

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On 7/8/2018 at 5:21 PM, dcalvert said:

3.8 grains WST with 125 gr Blue Bullet @ 1.120 is my Load for 5" steel gun shoot 125 PF. In he PCC with KAW 16" it is 175 PF. I am going to load it down to 3.3 gr. And chrono again 

dcalvert

That's an awfully big difference in PF wow!   Any new updates on that?   That 16" BARREL must be fast.

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  • 8 months later...
On ‎4‎/‎22‎/‎2019 at 10:26 PM, HoMiE said:

Seems way to light, I’d be afraid of squibs running that load. 

Really depends on your barrel. I run 3.5gr with a 135 blue bullet and get about 133PF in my gun with 16" JP barrel. This load is about 142PF in my other 16" barrel.

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  • 8 months later...

I just finished my first pcc build using a Kaw Valley barrel as well. I tried both BBI and Blue Bullets 125 TC at 1.12. Neither passed plunk test, but factory Federal at 1.15 worked just fine. What am I missing here? I have some Everglades plated 125s inbound to try as well. Very frustrated today. Loading on a Dillon 650 using Dillon dies. All rounds passed a chamber gauge. I had to go down to 1.05 to get one to pass plunk test. 

Edited by Atownsend
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24 minutes ago, Atownsend said:

I just finished my first pcc build using a Kaw Valley barrel as well. I tried both BBI and Blue Bullets 125 TC at 1.12. Neither passed plunk test, but factory Federal at 1.15 worked just fine. What am I missing here? I have some Everglades plated 125s inbound to try as well. Very frustrated today. Loading on a Dillon 650 using Dillon dies. All rounds passed a chamber gauge. I had to go down to 1.05 to get one to pass plunk test. 

The bullet profile (TC vs Rn etc) makes a lot of difference in passing the plunk test. The truncated cone has a more blunt profile compared to a factory federal round nose so it contacts the rifling before a round nose bullet does.

 

 

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I tried the TC when my 135 RN would not pass plunk test either. Same OAL 1.12. In further research tonight I read that Kaw Valley barrels only like coated bullets at very short OAL unless they are throated. I guess I will have to wait on the plated bullets to see if there is any difference. 

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I tried the TC when my 135 RN would not pass plunk test either. Same OAL 1.12. In further research tonight I read that Kaw Valley barrels only like coated bullets at very short OAL unless they are throated. I guess I will have to wait on the plated bullets to see if there is any difference. 


I can ream your barrel if interested. When done you can load out to 1.160+ depending on the projectile.


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38 minutes ago, 1911luvr said:

 


I can ream your barrel if interested. When done you can load out to 1.160+ depending on the projectile.


Sent from my iPhone using Tapatalk

 


The fact that you can slip a 1/4” socket extension onto the back of the reamers you had made was brilliant. I used that feature to cut my PCC’s barrel with ease without pulling it out of the upper.

 

(I still have the dummy round I drilled & tapped for a cleaning rod to do a plunk test,  too! )

Edited by MemphisMechanic
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