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Major 9mm loads
- Thread Starter fxdc
- Start date
- Thread Starter
- #3
I've always been curious about 9mm major. It's the main reason I won't pick up a 9mm cartridge off the ground and shoot it.
That makes 2 of us.
LOL
Well a few things prior or giving out load info in case someone new gets an idea to shoot it.
More important than worring about picking cases up off the ground is using the same head stamp during load development and beyond. Asking for which case is an important factor when you ask for load data. Differenences between case volumes and wall thicknesses from manufacturers can cause a delta in about 4k of pressure in a factor 9mm load per the loading manuals. Let that sink in, once you make it a major load that 4k goes up dramatically. Also the rim dimensions vary by around .017" so that will cause extraction issues. Stand back and watch some guns that bounce cases in all different directions.
Next the aol is critical since for every .010" deeper you seat the bullet on a minor load the pressure increases 10-11k (per the manuals). So if you increase the powder for major and don't increase the oal the pressure increases exponentially. Not good or safe for you or your gun.
Taking these two things into consideration will save you down the line. Also peak pressure is very high so running a minimum of a 124 grain bullet will help. Plated rounds don't hold up due to the peak pressure, I know someone will argue about this and the above info so if you don't believe me just move on or start collecting data. So having said that here is my data.
Basic load (adjusted slightly for different guns)
Montana Gold 124 grain HP jacketed bullet
7.0 Winchester Auto Comp
I purchase Winchester once fire brass (pick up what I mark)
Oal is 1.165 - 1.170
Light crimp
Winchester Small Pistol Primers
Barrel - Schuemann 5.4" ribbed AET (no holes) / 3 port comp
Barrel - Schuemann 5.0" bushing AET (no holes) / 3 port comp
Barrel - Schuemann 6.0" ribbed Tribrid AET -3 internal comp ports (for 3 gun)
Another thing you want to do is run the heaviest spring you can in your gun that is reliable. Under springing your gun, just because it feels good will normally lead to cracked slides or frames. Hope this helps you
More important than worring about picking cases up off the ground is using the same head stamp during load development and beyond. Asking for which case is an important factor when you ask for load data. Differenences between case volumes and wall thicknesses from manufacturers can cause a delta in about 4k of pressure in a factor 9mm load per the loading manuals. Let that sink in, once you make it a major load that 4k goes up dramatically. Also the rim dimensions vary by around .017" so that will cause extraction issues. Stand back and watch some guns that bounce cases in all different directions.
Next the aol is critical since for every .010" deeper you seat the bullet on a minor load the pressure increases 10-11k (per the manuals). So if you increase the powder for major and don't increase the oal the pressure increases exponentially. Not good or safe for you or your gun.
Taking these two things into consideration will save you down the line. Also peak pressure is very high so running a minimum of a 124 grain bullet will help. Plated rounds don't hold up due to the peak pressure, I know someone will argue about this and the above info so if you don't believe me just move on or start collecting data. So having said that here is my data.
Basic load (adjusted slightly for different guns)
Montana Gold 124 grain HP jacketed bullet
7.0 Winchester Auto Comp
I purchase Winchester once fire brass (pick up what I mark)
Oal is 1.165 - 1.170
Light crimp
Winchester Small Pistol Primers
Barrel - Schuemann 5.4" ribbed AET (no holes) / 3 port comp
Barrel - Schuemann 5.0" bushing AET (no holes) / 3 port comp
Barrel - Schuemann 6.0" ribbed Tribrid AET -3 internal comp ports (for 3 gun)
Another thing you want to do is run the heaviest spring you can in your gun that is reliable. Under springing your gun, just because it feels good will normally lead to cracked slides or frames. Hope this helps you
- Thread Starter
- #5
Very good points for all to remember!
Cool using Will's barrels, he was a part of our shooting circle in Reno and Carson City.
Shot one of the 1st prototypes.. not bad but what ya expect from a real rocket scienist turned school teacher.
LOL
Now how to get a hybrid barrel on my M&P.
And keep lockup..... bull barreled?
Why not....
LOL
Good question for Luke at KKM.
Heading down there come later this year to give the kids some videos if some of the matches es we shot in Cali since Kevin had told me he had none.
What is the FPS and power factor with that load?
Last Edited:
- Thread Starter
- #6
My order of delta precision 115 and 124gr JPG would be here this week.
And will be trying HS 6 , N3 38, and Sillo.
My old load for the old COMP was auto COMP 7.1 with a 124gr made major at 1350/1360 fps.
Going to use a slower power to work the new comp.
And will be trying HS 6 , N3 38, and Sillo.
My old load for the old COMP was auto COMP 7.1 with a 124gr made major at 1350/1360 fps.
Going to use a slower power to work the new comp.
- Thread Starter
- #8
That's some pretty good speed!
Nice avatar btw
She did a pin up calendar for me .....
Not sure want it will take but I want 170 to 175 power factor ... so I can see where the gun gets Flat so I need to get to 1400 fps with the 124gr .
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I am guessing these specs won't be found in a reloading manual?
What's your OAL? I'm guessing 1.145ish, maybe 1.150?
WARNING--Loads that you will find in NO reloading book. For purpose built race guns
with fully supported chambers. Do not try this at home. Your mileage may vary.
HS6--I'm loading 8.8 with a PD 115 JHP, but that's at 1.175. Back down to 8.4 or so, chrono and work up.
For a 124 gr start around 7.6. HS6 is dirty until you get the pressure up---it burns cleaner at major.
Probably the most cost effective consistent and forgiving powder for 9 Major, and readily available.
3N38 is the powder I'm probably switching to (HS6 has a little dot "wiggle" I can't seem to get rid of)
Start around 8.5 with a 124. Not sure you can make major with a 115---you might run out of case--it's
pretty full at my 9.0 gr, 124 gr PD JHP, 1.175 OAL load Downside to 3N38 is cost, but given the overall
cost of playing in Open, it really doesn't amount to much.
Silhouette. 7.3 with a 124 at 1.175. Start at 6.7 or so and chrono? Silhouette is more than a little temperature
sensitive. Enough that you might want to adjust for winter and summer loads.
All of this is using a full size 2011, KKM barrel, 2 .156 popple holes, Bedell Ti Comp. I generally load to a 172 PF in
that gun---have two others that use the same ammo and chrono a touch higher and lower.
WARNING--Loads that you will find in NO reloading book. For purpose built race guns
with fully supported chambers. Do not try this at home. Your mileage may vary.
HS6--I'm loading 8.8 with a PD 115 JHP, but that's at 1.175. Back down to 8.4 or so, chrono and work up.
For a 124 gr start around 7.6. HS6 is dirty until you get the pressure up---it burns cleaner at major.
Probably the most cost effective consistent and forgiving powder for 9 Major, and readily available.
3N38 is the powder I'm probably switching to (HS6 has a little dot "wiggle" I can't seem to get rid of)
Start around 8.5 with a 124. Not sure you can make major with a 115---you might run out of case--it's
pretty full at my 9.0 gr, 124 gr PD JHP, 1.175 OAL load Downside to 3N38 is cost, but given the overall
cost of playing in Open, it really doesn't amount to much.
Silhouette. 7.3 with a 124 at 1.175. Start at 6.7 or so and chrono? Silhouette is more than a little temperature
sensitive. Enough that you might want to adjust for winter and summer loads.
All of this is using a full size 2011, KKM barrel, 2 .156 popple holes, Bedell Ti Comp. I generally load to a 172 PF in
that gun---have two others that use the same ammo and chrono a touch higher and lower.
- Thread Starter
- #12
Hey Bill
Going as long as can .... my OAL on the A.C. load is 1.160.
Ya hit the nail on the head and I agree.
Pending in bleeder /popler holes and the comp their will be some variables.
Freaking spell ck!!!
Anyway no barrel holes, gonna see how this SJC blows. Thanks for sharing!!!!!
Going as long as can .... my OAL on the A.C. load is 1.160.
Ya hit the nail on the head and I agree.
Pending in bleeder /popler holes and the comp their will be some variables.
Freaking spell ck!!!
Anyway no barrel holes, gonna see how this SJC blows. Thanks for sharing!!!!!
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Kinda want to see the result of someone trying these loads in their Glocks or maybe a high point. Just for giggles. And with appropriate safety measures in place.
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How do these loads compare to 38 super in the same bullet weight?
- Thread Starter
- #15
Kinda want to see the result of someone trying these loads in their Glocks or maybe a high point. Just for giggles. And with appropriate safety measures in place.
A Hi freaking Point?
May leave that one to Myth Busters!!!
LOL
Just keep a sharp eye out for stepped brass. Not sure there was any around the last
time I saw you at a match. DO NOT load major 9 in stepped brass!
- Thread Starter
- #18
- Thread Starter
- #19
Ok
The results are in, going to be using PD 124 JHP at 1.175 OAL.
Did loads with 115 and 124gr PD JHP
More accurate that the X treme 124gr.
My WAC load 7.1 ran an avg of 1395 PF 172.98
I prefer HS-6 over WAC the impulse is way better....
But the real winner is VV 3n38
8.6gr avg 1375 PF 170.5 was good , dot tracked ok...
8.8gr WOW .... Dot tracked up and STRAIGHT down stayed from C/line to the upper half at 75%.... NO PRESSURE SIGNS
Avg 1401fps PF 173.72
Wish I had loaded a few more at 9.0
And 9.2gr...... Thinking the sweet spot for the 5.5in KKM barrel and 11 port COMP is gonna be at PF of 175/177.
I ran out of 124gr and still waiting on my back order from PD
My project gun is running well now,all that's is Left is to strip rust off of ME .
Practice may be at the matches. As things are getting way busy at work , I need another body or 2 in the machine shop..... and yah I will be working again tomorrow sunday.
The results are in, going to be using PD 124 JHP at 1.175 OAL.
Did loads with 115 and 124gr PD JHP
More accurate that the X treme 124gr.
My WAC load 7.1 ran an avg of 1395 PF 172.98
I prefer HS-6 over WAC the impulse is way better....
But the real winner is VV 3n38
8.6gr avg 1375 PF 170.5 was good , dot tracked ok...
8.8gr WOW .... Dot tracked up and STRAIGHT down stayed from C/line to the upper half at 75%.... NO PRESSURE SIGNS
Avg 1401fps PF 173.72
Wish I had loaded a few more at 9.0
And 9.2gr...... Thinking the sweet spot for the 5.5in KKM barrel and 11 port COMP is gonna be at PF of 175/177.
I ran out of 124gr and still waiting on my back order from PD
My project gun is running well now,all that's is Left is to strip rust off of ME .
Practice may be at the matches. As things are getting way busy at work , I need another body or 2 in the machine shop..... and yah I will be working again tomorrow sunday.
Sweet looking pistola!Ok
The results are in, going to be using PD 124 JHP at 1.175 OAL.
Did loads with 115 and 124gr PD JHP
More accurate that the X treme 124gr.
My WAC load 7.1 ran an avg of 1395 PF 172.98
I prefer HS-6 over WAC the impulse is way better....
But the real winner is VV 3n38
8.6gr avg 1375 PF 170.5 was good , dot tracked ok...
8.8gr WOW .... Dot tracked up and STRAIGHT down stayed from C/line to the upper half at 75%.... NO PRESSURE SIGNS
Avg 1401fps PF 173.72
Wish I had loaded a few more at 9.0
And 9.2gr...... Thinking the sweet spot for the 5.5in KKM barrel and 11 port COMP is gonna be at PF of 175/177.
I ran out of 124gr and still waiting on my back order from PD
My project gun is running well now,all that's is Left is to strip rust off of ME .
Practice may be at the matches. As things are getting way busy at work , I need another body or 2 in the machine shop..... and yah I will be working again tomorrow sunday.
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