Reloading 9 mm? - The Firearms Forum

AlaskanExile · 01-22-2010, 09:59 AM

I shot six of my new reloads on my P95, two failed to chamber. I had to manually rack them. I loaded all six, shot two no problem, then the failure, then two more and the second failure. I am glad that I tested before loading more. I am using 4 grns Bullseye and Winchester primers. I seated them and checked with calipers to make sure they were the same as my purchased loads. I am shooting 115 grn round nose. Any ideas?

RandyP · 01-22-2010, 10:26 AM

Folks probably need a bit more info. FMJ, lead, plated? To what OAL? Did they fit into your case gauge or did you use the barrel to verify they fit before going to the range? Where in the load range does 4 grns Bullseye fall?

If they failed to cycle fully (too weak a load) that could cause your symptoms.

312shooter · 01-22-2010, 09:50 PM

Off the top of my head it seems that you're pretty close to a starting load, bump up the charge a bit. You are doing things exactly right! Start charge and work your way up is the smart reloaders way of approaching the hobby. Good luck!

PS just checked my speer data and starting gr is 4.7 bullseye under 115gr bullet, I'd say thats your problem

rocklinskier · 01-23-2010, 08:19 AM

Besides the powder charge stated above which can essentially cause cycling problems, when you check your finished rounds with calibers, are you checking diameter at the mouth of the case? If you are not crimping the case enough, it can cause it to be too tight in the chamber and cause feed jams.

Check against a factory loaded round as well as the data in the book. Most books give a dimension that is the MAXIMUM dia, not required dia.

On my .45's, if i crimp to .473 (book dia.) rounds will chamber fine in my worn out GI gun, but jam consistantly in my newer gun. .4715 will feed flawlessly.

m.h. · 01-23-2010, 10:52 AM

alliants web site lists 115 g gdhp with 4.7g bullseye as max load. reduce by 10% for start load

old semperfi · 01-23-2010, 07:34 PM

whats your process,you stated you miked rounds but did you chk case length.i have been reloading for years and have found that even new cases need to be trimmed.i also champher each case before loading.as has been states previously there are many things to chk before you have a good round,just go over it again and im sure youll find out your problem. old semperfi

312shooter · 01-24-2010, 12:09 AM

Quote:

Originally Posted by m.h.

alliants web site lists 115 g gdhp with 4.7g bullseye as max load. reduce by 10% for start load

This is a great lesson for all as to why we need multiple sources of data...

rocklinskier · 01-24-2010, 09:23 AM

Attention needs to be paid as to wether you are loading cast lead, or jacketed (someone said this above)

Load data differs Max load for GDHP is a fair amount more than max load for a 120g cast lead RN.

My book shows starting load at 3.4g and max of 4.2g (V:1175 fps) for a 120g RN lead.

4.3g would be HOT for that bullet

You need to match your bullet with your data

wmabesore · 01-24-2010, 07:38 PM

I may be redundant here, but I have found that LRN 125 grain bullets need to be set much shorter (deeper) than a commercially made FMJ round. I use the barrels from all of my 9 mm guns to test for easy chambering until they are being seated deep enough.

01-22-2010, 09:59 AM	#1
AlaskanExile Member Join Date: Jan 2010 Posts: 1	Reloading 9 mm? I shot six of my new reloads on my P95, two failed to chamber. I had to manually rack them. I loaded all six, shot two no problem, then the failure, then two more and the second failure. I am glad that I tested before loading more. I am using 4 grns Bullseye and Winchester primers. I seated them and checked with calipers to make sure they were the same as my purchased loads. I am shooting 115 grn round nose. Any ideas? -->

01-22-2010, 10:26 AM	#2
RandyP V.I.P. Member Join Date: Jan 2009 Posts: 430	Re: Reloading 9 mm? Folks probably need a bit more info. FMJ, lead, plated? To what OAL? Did they fit into your case gauge or did you use the barrel to verify they fit before going to the range? Where in the load range does 4 grns Bullseye fall? If they failed to cycle fully (too weak a load) that could cause your symptoms. __________________ Lee Anniversary and Lee Classic 4-Hole Turret, presently reloading .380, 7.62 Nagant (32-20), 9mm and 45ACP Last edited by RandyP; 01-22-2010 at 10:29 AM..

01-22-2010, 09:50 PM	#3
312shooter Advanced Senior Member Join Date: Mar 2008 Location: Las Vegas NV Posts: 1,148	Re: Reloading 9 mm? Off the top of my head it seems that you're pretty close to a starting load, bump up the charge a bit. You are doing things exactly right! Start charge and work your way up is the smart reloaders way of approaching the hobby. Good luck! PS just checked my speer data and starting gr is 4.7 bullseye under 115gr bullet, I'd say thats your problem __________________ "Democracy is based on citizenship- perhaps the greatest gift the United States has given to the world- Power is vested in the people themselves, and government flows from the people" James M Henslin Last edited by 312shooter; 01-23-2010 at 12:37 AM..

01-23-2010, 08:19 AM	#4
rocklinskier V.I.P. Member Join Date: Aug 2009 Posts: 295	Re: Reloading 9 mm? Besides the powder charge stated above which can essentially cause cycling problems, when you check your finished rounds with calibers, are you checking diameter at the mouth of the case? If you are not crimping the case enough, it can cause it to be too tight in the chamber and cause feed jams. Check against a factory loaded round as well as the data in the book. Most books give a dimension that is the MAXIMUM dia, not required dia. On my .45's, if i crimp to .473 (book dia.) rounds will chamber fine in my worn out GI gun, but jam consistantly in my newer gun. .4715 will feed flawlessly. __________________ Freedom is never more than one generation away from extinction. We didn't pass it on to our children in the bloodstream. It must be fought for, protected, and handed on for them to do the same, or one day we will spend our sunset years telling our children and our children’s children what it was once like in the United States where men were free ~Ronald Reagan.

01-23-2010, 10:52 AM	#5
m.h. Member Join Date: Jun 2008 Posts: 6	Re: Reloading 9 mm? alliants web site lists 115 g gdhp with 4.7g bullseye as max load. reduce by 10% for start load

01-23-2010, 07:34 PM	#6
old semperfi Advanced Senior Member Join Date: Aug 2009 Location: i live in southern indiana,old country boy at heart Posts: 1,506	Re: Reloading 9 mm? whats your process,you stated you miked rounds but did you chk case length.i have been reloading for years and have found that even new cases need to be trimmed.i also champher each case before loading.as has been states previously there are many things to chk before you have a good round,just go over it again and im sure youll find out your problem. old semperfi

01-24-2010, 09:23 AM	#8
rocklinskier V.I.P. Member Join Date: Aug 2009 Posts: 295	Re: Reloading 9 mm? Attention needs to be paid as to wether you are loading cast lead, or jacketed (someone said this above) Load data differs Max load for GDHP is a fair amount more than max load for a 120g cast lead RN. My book shows starting load at 3.4g and max of 4.2g (V:1175 fps) for a 120g RN lead. 4.3g would be HOT for that bullet You need to match your bullet with your data __________________ Freedom is never more than one generation away from extinction. We didn't pass it on to our children in the bloodstream. It must be fought for, protected, and handed on for them to do the same, or one day we will spend our sunset years telling our children and our children’s children what it was once like in the United States where men were free ~Ronald Reagan.

01-24-2010, 07:38 PM	#9
wmabesore Member Join Date: Nov 2009 Posts: 5	Re: Reloading 9 mm? I may be redundant here, but I have found that LRN 125 grain bullets need to be set much shorter (deeper) than a commercially made FMJ round. I use the barrels from all of my 9 mm guns to test for easy chambering until they are being seated deep enough.