9mm loads wont chamber

A Wilson gauge is not as good a gauge as the chamber. However, you're describing either an OAL(1.169" just works) or insufficient crimp issue. More likely the latter caused by operator fatigue or just plain operator failure.
"...have a slight bulge..." With or without a bullet seated and crimped? Usually means the seater plug is down too far. Might have come loose with prolonged use.
"...2 diff(SIC) guns..." Two pistols have 2 very different chambers. However, it does prove it's a cartridge issue.
"...cases have been put through the Wilson gauge and are ok..." No, they aren't.
 
Could you supply some more info? What OAL are you using? Did you just switch to a JHP after using a RN? If you are using the same OAL, a JHP provides a flatter tip which means the bullet is farther forward and may be hitting the lands. Do the non-problematic rounds slip in and out of your chamber? I use the Wilson case gauge and find that my barrel is slightly looser. If you place the gauge on a flat surface a round that is too long with not go all the way in. Many barrels with certain bullets won't take a 1.1169" OAL.
 
I think that it could be those rounds were fired from a glock maybe. The case doesn't go all the way in to the barrel on a glock and causes case bulge. Me myself I have a Lyman case prep center and I size and deprime all my cases on my rock chucker then I trim and uniform all my primer pockets. This gives me time to inspect my cases one at a time. I simply throw away any bulged cases. I too use to have this problem from time to time. Since I've started doing all the case work on my Lyman case prep center first all my cases chamber perfectly and load more consistently. As an added bonus my groups down range have shrunk almost in half.
 
Hey Guys sorry I havent replied, been real busy lately. I think I might have solved this. I made a change to my expander die to flare out the cases a little further and after close to 50 rounds reloaded no issues. Have another 50 to go so I will report when its all good or not. Thanks
 
Well I finally figured it out. In my case it looks like it was the expander die not being set down enough. The ball was expanding just the the very top of the case. After a few more turns of the die the ball is expanding to just about midlenght. For whatever reason it works. Finished 100 rounds yest, checked on gauge ok. Went to the range last night and 9mm heaven is back. i've had similar issues before and it always pointed to the resizing die, not in this case. Going forward I'm going to a check a few rounds with the gauge every 50 or so rounds reloaded. Now I have about 150 rounds to pull. Def a winter project. Thanks to all for the many suggestions. I was going crazy on this one.
 
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Good for you. This will be an experience you shouldn't soon forget huh? We learn from simple mistakes sometimes.
 
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.
 
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.
 
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.
 
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Folks, it certainly does look like he straightened this out almost 2 weeks ago. Go back to post 24 and look.
 
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.
 
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