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Dedicated PCC load

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On 8/27/2018 at 3:54 PM, mitommy said:

 

Whar’s your load for 115s?

 

i’m thinking of switching to 115 (Berry’s) . The recommendation I was given was 4.3gr of TiteGroup, Winchester SPP, 1.15 OAL 

I've been using 4.1 grains of Vectan Ba 9.5; 115 gr Precision Delta FMJ at about 1.125 oal.  Haven't chronoed yet but it should be about 135-138 pf.  This powder leaves sand like s#!t everywhere in the action.  Tired of the mess.  Bought this powder cause it was cheap at PV.  I've given up and going to work up a load with N320. 

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17 hours ago, blaster113 said:

I've given up and going to work up a load with N320. 

You can't go wrong with any of the VV powders, a bit pricey but great!

 

115gr.........3.0 Clays

                     3.5 Universal

                     4.2 Power Pistol

 All run around 1100fps out of MY gun, I would chrono for yours. If it was for a major match, I would up all just a touch.

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On 8/27/2018 at 9:58 PM, S&W686 said:

This is my load data for my GMR-15:  This has worked well for me.

124gr Precision Delta

4.1gr VV N320

C.O.L - 1.125

124gt MG HP

4.0 VVN32

COL 1.155

no problem making PF and very clean

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On 8/28/2018 at 9:45 PM, chevrofreak said:

You aren't going to find pressure issues with Power Pistol unless you go looking for it.  I have loaded 8.8gr under a 115gr JHP for 9major and barely saw anything on the primers.  That load was a completely full case.   I have had far more problems with HS6 and WAC.  I have blown primers using common 9major load levels with both of those powders.

 

I bet your 4.0gr load is a little on the weak side, around 1040fps, which would be fine for steel if reliable.   Using simple math a 4.3-4.4gr load with a 115 will make about 126.5 to 131.5 PF.  If you get some bad extreme spreads, try seating your bullet deeper to reduce combustion irregularities. 

My next bullet will b a 124 or 125 gr RN. Do you have any Power Pistol data? Default will be same as 115gr.

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Tagged for interest. My intent is to use a bunch of PP I have behind a 124FMJ for the MPX for the slightly slower burn rate. Switching from TG/147 in my BB AR9. 

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14 hours ago, SJMPCC022 said:

My next bullet will b a 124 or 125 gr RN. Do you have any Power Pistol data? Default will be same as 115gr.

If all you are changing is weight, 3.9gr should get you a nearly identical power factor as your 4.2/115 load.

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On ‎10‎/‎20‎/‎2018 at 12:19 AM, chevrofreak said:

If all you are changing is weight, 3.9gr should get you a nearly identical power factor as your 4.2/115 load.

My thoughts exactly, 9or 10gr in bullet weight shouldn't change much.

 

Thanks for the heads up on PP powder, I really like it!

 

I have a match today, going to try the 115gr load with Power Pistol.

 

Edited by SJMPCC022
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For those shooting round nose and not getting the accuracy you might desire, try hollow point. I don't know what it is in PCC guns but more than one gun that I know shoots much more accurate with HP bullets than RN of the same bullet weight.

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You aren't going to find pressure issues with Power Pistol unless you go looking for it.  I have loaded 8.8gr under a 115gr JHP for 9major and barely saw anything on the primers.  That load was a completely full case.   I have had far more problems with HS6 and WAC.  I have blown primers using common 9major load levels with both of those powders.


Not to derail the subject, but I’m looking for a 9major load for my M&P9 open gun. I ended up with a pound of Power Pistol, Winchester AutoComp and HS-6 to try. I tried 6.8gr WAC with a MG 124gr JHP and I was getting too much muzzle flip with a 16# spring. I went up to 7.2gr and a 19# spring and it worked the comp much better with the extra gas, but needs a little more to completely flatten out. The idea of going to 7.3 or more is a bit scary so I was interested in your recipe.



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13 hours ago, 1911luvr said:

 


Not to derail the subject, but I’m looking for a 9major load for my M&P9 open gun. I ended up with a pound of Power Pistol, Winchester AutoComp and HS-6 to try. I tried 6.8gr WAC with a MG 124gr JHP and I was getting too much muzzle flip with a 16# spring. I went up to 7.2gr and a 19# spring and it worked the comp much better with the extra gas, but needs a little more to completely flatten out. The idea of going to 7.3 or more is a bit scary so I was interested in your recipe.



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It worked, but is far from my favorite. 

 

 With your powders listed, if 6.8 WAC made major (it did for me as well) then 7.8 of HS-6 under the same 124 should work.  If you can, get some Silhouette and try 7.6-7.7gr.  Silhouette is my favorite 9major powder, but I pretty much exclusively run 115's.  AA7 at 9.5-9.7 or 3N38 at 8.7-8.8 are also very nice. 

 

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BTW, I was blowing primers at 7.4 of WAC in both my Glock and CK, so I never recommend WAC.  

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It worked, but is far from my favorite. 

 

 With your powders listed, if 6.8 WAC made major (it did for me as well) then 7.8 of HS-6 under the same 124 should work.  If you can, get some Silhouette and try 7.6-7.7gr.  Silhouette is my favorite 9major powder, but I pretty much exclusively run 115's.  AA7 at 9.5-9.7 or 3N38 at 8.7-8.8 are also very nice. 

 

I have some Silhouette that was given to me, but never used it. I didn’t know it was good for 9 major. 6.8gr WAC makes 167 PF in my M&P open top end. I didn’t get to chrono the 7.2gr. I’m trying to find something that has enough gas to really work the comp this gun. The 7.2 WAC shot much flatter than a 6.8, which had me thinking if I could just get a little bit more in there it would be perfect. But I know that’s pushing WAC. I’m going to try that load with silhouette next and see how it does. Thank you very much!

 

 

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2 hours ago, 1911luvr said:

I have some Silhouette that was given to me, but never used it. I didn’t know it was good for 9 major. 6.8gr WAC makes 167 PF in my M&P open top end. I didn’t get to chrono the 7.2gr. I’m trying to find something that has enough gas to really work the comp this gun. The 7.2 WAC shot much flatter than a 6.8, which had me thinking if I could just get a little bit more in there it would be perfect. But I know that’s pushing WAC. I’m going to try that load with silhouette next and see how it does. Thank you very much!

 

 

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In a light gun like your M&P you will likely be better off switching to 115's and more powder to get the comp working.  My go-to load is 8.3gr of Silhouette under a 115jhp.  It shows less pressure than HS-6 or WAC do at the same PF. 

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