9mm load check!

catzor · July 25, 2011, 11:06 AM

In my p95, I had the following load:

124gr lee truncated cone TL
4.2gr bullseye
1.16 OAL

The load was light and carbon deposits could be seen on the case mouth (too low pressure, I think). Accuracy was poor.

Fast forward to now. The p95 is no more and I currently have a keltec p11. It will not feed these loads at all. To correct the problem, I shortened the OAL to 1.12 and tried the loads. No more carbon deposits on the case mouth due to higher pressures, but I also got cratered primers (federal primers). There would be a ridge around where the firing pin hit, but it was mostly flattened due to slamming the breech face. Is this a sign of overpressure? How does the load sound to you guys? What charge of BE would you recommend with this bullet combo?

For reference the load I'm talking about is:

124gr lee truncated cone TL
4.2gr BE
1.12 OAL

kraigwy · July 25, 2011, 11:38 AM

Federal primers have softer caps then most others. I use them in in revolvers for competition and carry ammo because of the positive ignition.

Most people who make comp guns (Clark 'n such) recommend Federal Primers for their competition guns because normally they have lighter hammer springs.

However, none none of the semi's I have, nor semi's I've seen need softer caps.

I would recommend trying other brands of primers to see how they work.

justinpar · July 25, 2011, 04:23 PM

I've loaded 4.2 BE 124gr rainier plated at 1.15 and they were fairly light loads. Using WSP primers.

CherokeeT · July 25, 2011, 06:09 PM

Give CCI SP primers a try. If you get similar result, back off. Lyman #49 manual lists 4.2 max for 120 gr cast bullet.

m&p45acp10+1 · July 25, 2011, 07:01 PM

I use what ever primers I can get for loading 9mm. One of them happens to be a P11. Though I shoot plated. Note mine makes primes look cratered with any ammo. It shoots fine, and I have not hand any problems with it at all. If the trigger was not so awful I would probably shoot it more.

July 25, 2011, 11:06 AM	#1
catzor Senior Member Join Date: March 20, 2010 Location: Raleigh, NC Posts: 104	9mm load check! In my p95, I had the following load: 124gr lee truncated cone TL 4.2gr bullseye 1.16 OAL The load was light and carbon deposits could be seen on the case mouth (too low pressure, I think). Accuracy was poor. Fast forward to now. The p95 is no more and I currently have a keltec p11. It will not feed these loads at all. To correct the problem, I shortened the OAL to 1.12 and tried the loads. No more carbon deposits on the case mouth due to higher pressures, but I also got cratered primers (federal primers). There would be a ridge around where the firing pin hit, but it was mostly flattened due to slamming the breech face. Is this a sign of overpressure? How does the load sound to you guys? What charge of BE would you recommend with this bullet combo? For reference the load I'm talking about is: 124gr lee truncated cone TL 4.2gr BE 1.12 OAL

July 25, 2011, 11:38 AM	#2
kraigwy Senior Member Join Date: June 16, 2008 Location: Wyoming Posts: 11,061	Federal primers have softer caps then most others. I use them in in revolvers for competition and carry ammo because of the positive ignition. Most people who make comp guns (Clark 'n such) recommend Federal Primers for their competition guns because normally they have lighter hammer springs. However, none none of the semi's I have, nor semi's I've seen need softer caps. I would recommend trying other brands of primers to see how they work. __________________ Kraig Stuart CPT USAR Ret USAMU Sniper School Distinguished Rifle Badge 1071

July 25, 2011, 07:01 PM	#5
m&p45acp10+1 Senior Member Join Date: May 3, 2009 Location: Central Texas Posts: 3,930	I use what ever primers I can get for loading 9mm. One of them happens to be a P11. Though I shoot plated. Note mine makes primes look cratered with any ammo. It shoots fine, and I have not hand any problems with it at all. If the trigger was not so awful I would probably shoot it more. __________________ No matter how many times you do it and nothing happens it only takes something going wrong one time to kill you.

July 25, 2011, 04:23 PM	#3
justinpar Member Join Date: March 12, 2011 Posts: 45	I've loaded 4.2 BE 124gr rainier plated at 1.15 and they were fairly light loads. Using WSP primers.

July 25, 2011, 06:09 PM	#4
CherokeeT Senior Member Join Date: April 23, 2008 Location: Medina, Ohio Posts: 273	Give CCI SP primers a try. If you get similar result, back off. Lyman #49 manual lists 4.2 max for 120 gr cast bullet. __________________ God Bless America US Army, NRA Endowment TSRA Life, SASS