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9mm Major loads that run clean and smooth on a matchmaster


Bamaboy

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Currently running CFE Pistol 6.8grn over a 124grn Black Bullet. Calipers went dead so I can't give you an accurate oal. But I set my oal 2 years ago and left it alone. 

 

Wanna switch to a cleaner powder but keep same bullet. If you run a matchmaster what is your cream of the crop load to make that gun as flat as possible. 

 

The reason I'm looking for cleaner is because my glass is picking up carbon pretty badly

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45 minutes ago, Bamaboy said:

  my glass is picking up carbon pretty badly

 

My TruBors kept getting dirty glass, until I switched

to BE's Slide Glide as a lube for the gun.

 

It doesn't splatter, like liquid lubes    :) 

 

To run "flatter", you might try a slightly slower powder, e.g. HS6.

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4 minutes ago, Sarge said:

Try some fully Jacketed or plated bullets. BBI are great Bullets but too dirty for m to run in Open 

I've never had an issue with BBI or Blue. I perfered BBI and know the owner pretty well. I just talked to STI and they said there should be no backwards gas coming out of the comp. So I sent them requested pics and they are probably going to replace my barrel all together.  They said the comp should only dispel vertical gas and I should be able to run an optic without a balst shield. We shall see

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3 hours ago, Hi-Power Jack said:

 

My TruBors kept getting dirty glass, until I switched

to BE's Slide Glide as a lube for the gun.

 

It doesn't splatter, like liquid lubes    :) 

 

To run "flatter", you might try a slightly slower powder, e.g. HS6.

Why HS6 sepcifically. And what load do you run with it. 

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2 hours ago, Bamaboy said:

I've never had an issue with BBI or Blue. I perfered BBI and know the owner pretty well. I just talked to STI and they said there should be no backwards gas coming out of the comp. So I sent them requested pics and they are probably going to replace my barrel all together.  They said the comp should only dispel vertical gas and I should be able to run an optic without a balst shield. We shall see

? I know Chandler too. Still pretty dirty in an Open gun. But it’s good there may be a hole angle issue. 

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2 hours ago, Bamaboy said:

Why HS6 sepcifically. And what load do you run with it. 

Slower powder typically means more gas for a given charge. More gas means more comp effectiveness which equals flatter generally speaking.

  When you find a gunpowder that is so clean as to equal “eating off the floor” clean, please let us know. In my experience some powders are cleaner than others but none are really that clean.

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6 hours ago, Bamaboy said:

Why HS6 sepcifically. And what load do you run with it. 

 

You asked for a powder that would give you a flatter response -

any slower powder will help do that.  HS6 is a little slower than

WAC, but there are other even slower powders that are probably

even "better".

 

HS6 needs about 1.0 grains more than WAC (WAC runs from

6.7- 7.5 grains) and HS6 needs one more grain, usually, but

start low and work up slowly    :) 

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17 hours ago, Hi-Power Jack said:

 

You asked for a powder that would give you a flatter response -

any slower powder will help do that.  HS6 is a little slower than

WAC, but there are other even slower powders that are probably

even "better".

 

HS6 needs about 1.0 grains more than WAC (WAC runs from

6.7- 7.5 grains) and HS6 needs one more grain, usually, but

start low and work up slowly    :) 

I'm thinking VV 3N38. what do y'all think

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21 hours ago, Sarge said:

Slower powder typically means more gas for a given charge. More gas means more comp effectiveness which equals flatter generally speaking.

  When you find a gunpowder that is so clean as to equal “eating off the floor” clean, please let us know. In my experience some powders are cleaner than others but none are really that clean.

Sarge,  let me know right after you find it !

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It cost more than hs6,or wac, these are the two most used in 9 mm for open in my area..

some have started using aa#7 , but from what I’ve been told they use more of it than hs6 or wac.

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8 minutes ago, EEH said:

It cost more than hs6,or wac, these are the two most used in 9 mm for open in my area..

some have started using aa#7 , but from what I’ve been told they use more of it than hs6 or wac.

I ran 10.5gr of AA7 under a 115jhp.  It shoots great, but produces cornmeal when it burns. 

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20 minutes ago, chevrofreak said:

I ran 10.5gr of AA7 under a 115jhp.  It shoots great, but produces cornmeal when it burns. 

Hadn’t heard that.. so make cornbread. LoL

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On ‎8‎/‎7‎/‎2018 at 10:31 AM, EEH said:

Sarge,  let me know right after you find it !

 

On ‎8‎/‎6‎/‎2018 at 12:45 PM, Sarge said:

Slower powder typically means more gas for a given charge. More gas means more comp effectiveness which equals flatter generally speaking.

  When you find a gunpowder that is so clean as to equal “eating off the floor” clean, please let us know. In my experience some powders are cleaner than others but none are really that clean. 

 sarge what do you recommend for the cleaner side.  and if you were buying powder today would you go 3n38 or HS6

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6 hours ago, Bamaboy said:

 

 sarge what do you recommend for the cleaner side.  and if you were buying powder today would you go 3n38 or HS6

Thats a trick question! :)  Cleanest of those two? 3N38. Which would I personally use of the two? HS6  I used to use 3N37 in my 9MAJOR loads and it practically filled up the case just like 38. I can control the spilling on the press so that isn't a concern. What did bug me was my rounds were very inconsistent over chrono due to oal varying so much due to compressed loads. My rounds would actually grow overnight in some cases. I think it probably had to do with the age of the case, headstamp, etc. 

 

To go even further though, I have settled on WAC. HS6 is cleaner and works better the more you dump in the case. I found it tended to work better with 115's loaded long to avoid compression but was on par with WAC for 124's so I just stocked up on WAC and called it a day since it works well with 115's also. WAC meters great through my 650 and only fills the case 2/3rds or so.

 

I think clean burning is an overused and overrated concern. It's not like a gun shooting 3N38 NEVER needs cleaned. It still does eventually. Most guys running Open or limited custom guns tend to clean them more than they would a Glock. I find WAC pretty dirty but I can still easily put 1000 + rounds through it without any hiccups. I clean it about every 6-7 local matches or before a Major match and I would do the same thing if I ran 3N38. 

 

My loads are 7.8 WAC under MG 115 JHP @1.168

                        7.4 WAC under MG 121 IFP @1.168

                        7.2 WAC Under MG 124 JHP @ 1.168

  I'm currently working up a load for some PD 124 JHP's and for some reason it's taking a lot more powder to get to where I want it I'm at 7.5 WAC with these bullets @1.168. 

 

All loads are around 173-4 PF out of a full size 2011 with KKM and Schueman barrels.

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I must have a bottle from that "hot" batch of WAC, because at 7.4gr I was blowing out over 90% of my primers and I was above 180pf with a 124 PD JHP. 

 

Description: 124 PD JHP - 7.4gr WAC - S&B SPP - New EGA brass - 1.155" - CK Open gun

Distance to Chrono (FT): 3.00

Bullet Weight (gr): 124.000

Altitude (FT): 3600.0

Temp: 81 °F

BP: 26.34 inHG

Shots

#     FPS     FT-LBS PF

15    1476     599.94 183.02    

14    1450     578.99 179.80    

13    1463     589.42 181.41    

12    1468     593.46 182.03    

11    1451     579.79 179.92    

10    1469     594.27 182.16    

9     1458     585.40 180.79    

8     1460     587.01 181.04    

7     1460     587.01 181.04    

6     1457     584.60 180.67    

5     1456     583.79 180.54    

4     1466     591.84 181.78    

3     1456     583.79 180.54    

2     1479     602.38 183.40    

1     1458     585.40 180.79    

Average: 1461.80

StdDev: 8.40

Min: 1450

Max: 1479

Spread: 29

True MV: 1462.30

 

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