9mm loads wont chamber - Page 2

hounddawg · September 24, 2017, 10:55 AM

Good to hear that you solved it. This was a good thread, I learned a lot from the discussion also

kmw1954 · September 24, 2017, 11:36 AM

Good for you. This will be an experience you shouldn't soon forget huh? We learn from simple mistakes sometimes.

pete2 · September 24, 2017, 10:44 PM

Check them in the chamber of the bbl from the gun that you are going to shoot them in. Just remove the bbl and use it as a cartridge gauge. It'll tell you if the ammo fits, NOT the Wilson gauge.

Sky Master · October 4, 2017, 08:58 AM

Sounds like you need Lee's Factory Crimp Die

ShootistPRS · October 4, 2017, 10:04 AM

Some guns, like the CZ75B that I own, have a very short leade. That means that the distance from the chamber to the rifling is shorter than others. The bullets, depending on their shape, have to be seated further than some of the manuals suggest. I found this out by using the listed OAL that was published with the load and had to pull the bullets and reload the rounds. I have had very little experience with auto-loaders but it was easy to tell that the bullet was hitting the rifling before it was chambered. The cure was to seat the bullets so that when the case was dropped into the barrel it was able to be free from hitting the rifling. I now use my barrel to determine the proper OAL for my loads.

MrApathy · October 5, 2017, 06:17 PM

what gun are you using?

check the COL of the finished cartridge.

CZ's in 9mm and Steyr lines in 9mm have tight throats where .001 could mean a bullet is stuck in the rifling or not.
steyr's throat like ball profile ammo though not all bullets are same. truncated cone bullets cannot be seated out long. tall shoulder rather than a ball fmj curve.

check for canted bullets it happens sometimes in 9mm best solution I had was switching to Hornady seating die which gives a tighter seat.

smoke the bullet's you have and check the COL
most people just take a marker to the bullet and check seat it.

get rifling marks in your bullet and you then need to seat the bullet deeper.
keep in mind how deep you seat as you could easily increase the charge's pressure so adjust charge weight appropriately.

try to sort brass by headstamp it can make a difference though manufactures have variations and different lots of brass your better off getting consistent ammo from same headstamp than if you didnt.

what are you loading for cheap ammo? accuracy of any kind?
inconsistency in manufacturing of ammo can lead to inaccurate ammo and potentially dangerous situation if you dont watch what your doing.

kmw1954 · October 5, 2017, 09:32 PM

Folks, it certainly does look like he straightened this out almost 2 weeks ago. Go back to post 24 and look.

**Unclenick** · October 6, 2017, 08:48 AM

24 and 25. Yes, solved. I'm guessing he mistook the rounded-tip straightening portion of the expander that precedes the actual flare shoulder for the flare shoulder itself. As a result, the expander wasn't screwed in far enough for the case mouths to reach the actual flare shoulder until he experimented a bit.

September 24, 2017, 10:55 AM	#26
hounddawg Senior Member Join Date: March 1, 2009 Posts: 4,232	Good to hear that you solved it. This was a good thread, I learned a lot from the discussion also __________________ “How do I get to the next level?” Well, you get to the next level by being the first one on the range and the last one to leave.” – Jerry Miculek

October 5, 2017, 06:17 PM	#31
MrApathy Senior Member Join Date: December 21, 2004 Posts: 529	what gun are you using? check the COL of the finished cartridge. CZ's in 9mm and Steyr lines in 9mm have tight throats where .001 could mean a bullet is stuck in the rifling or not. steyr's throat like ball profile ammo though not all bullets are same. truncated cone bullets cannot be seated out long. tall shoulder rather than a ball fmj curve. check for canted bullets it happens sometimes in 9mm best solution I had was switching to Hornady seating die which gives a tighter seat. smoke the bullet's you have and check the COL most people just take a marker to the bullet and check seat it. get rifling marks in your bullet and you then need to seat the bullet deeper. keep in mind how deep you seat as you could easily increase the charge's pressure so adjust charge weight appropriately. try to sort brass by headstamp it can make a difference though manufactures have variations and different lots of brass your better off getting consistent ammo from same headstamp than if you didnt. what are you loading for cheap ammo? accuracy of any kind? inconsistency in manufacturing of ammo can lead to inaccurate ammo and potentially dangerous situation if you dont watch what your doing. __________________ Divided and conquered, Gripped by fear Wishful thinking that it can't happen here It's well underways but nobody knows A repeat of history, That's how it goes Last edited by MrApathy; October 5, 2017 at 06:53 PM.

October 6, 2017, 08:48 AM	#33
Unclenick Staff Join Date: March 4, 2005 Location: Ohio Posts: 21,063	24 and 25. Yes, solved. I'm guessing he mistook the rounded-tip straightening portion of the expander that precedes the actual flare shoulder for the flare shoulder itself. As a result, the expander wasn't screwed in far enough for the case mouths to reach the actual flare shoulder until he experimented a bit. __________________ Gunsite Orange Hat Family Member CMP Certified GSM Master Instructor NRA Certified Rifle Instructor NRA Benefactor Member and Golden Eagle

September 24, 2017, 11:36 AM	#27
kmw1954 Senior Member Join Date: June 11, 2016 Location: SE Wisconsin Posts: 1,524	Good for you. This will be an experience you shouldn't soon forget huh? We learn from simple mistakes sometimes.

September 24, 2017, 10:44 PM	#28
pete2 Senior Member Join Date: May 15, 2012 Location: Texas Posts: 2,566	Check them in the chamber of the bbl from the gun that you are going to shoot them in. Just remove the bbl and use it as a cartridge gauge. It'll tell you if the ammo fits, NOT the Wilson gauge.

October 4, 2017, 08:58 AM	#29
Sky Master Senior Member Join Date: May 30, 2009 Posts: 136	Sounds like you need Lee's Factory Crimp Die

October 4, 2017, 10:04 AM	#30
ShootistPRS Senior Member Join Date: January 3, 2017 Posts: 1,583	Some guns, like the CZ75B that I own, have a very short leade. That means that the distance from the chamber to the rifling is shorter than others. The bullets, depending on their shape, have to be seated further than some of the manuals suggest. I found this out by using the listed OAL that was published with the load and had to pull the bullets and reload the rounds. I have had very little experience with auto-loaders but it was easy to tell that the bullet was hitting the rifling before it was chambered. The cure was to seat the bullets so that when the case was dropped into the barrel it was able to be free from hitting the rifling. I now use my barrel to determine the proper OAL for my loads.

October 5, 2017, 09:32 PM	#32
kmw1954 Senior Member Join Date: June 11, 2016 Location: SE Wisconsin Posts: 1,524	Folks, it certainly does look like he straightened this out almost 2 weeks ago. Go back to post 24 and look.