My usual lead supplier was out of stock so I tried Missouri bullet co. 124gr. 9mm coated for the first time. Loaded a few, checked dimensions and used the chamber gauge. At the range today my son fired some from a Glock and I loaded a mag in my 9mm S.A. RO. First round fired but no trigger pull for the second. Slide didn't go all the way forward. Wouldn't bump closed so pulled back (took some force) and the case ejected spewing powder all over.
I knew what it was as I had the same with a CZ 75B, short throat.
Home (after knocking the bullet out of the barrel) I found some older loads with my usual Xtreme bullets and they cycled through and drop tested in the RO's barrel just fine. The MBC rounds wouldn't cycle and failed the plop test. Comparing bullets the MBC's are more chubby towards the nose of the bullet.
Lesson learned. Had I plop tested all my 9mm barrels after a component change I would have caught it.

I guess I'm lucky in that none of the 9 MM guns I have are short throat chamber guns. I've never experienced that particular pain of going to the range with a bunch of ammo my 9's won't chamber.

I am using the same MBC 124 g. coated and haven't had any trouble ... after I figured out they had to be seated a tad shorter for my 3906.

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Some collect art; I shoot it!

Sorry to hear that you have a pistol that needs care in loading.

My 9c is a sword swallower.........

Hope you get those bullets to work out for you.

If using the MBC 124 "small ball" the company tells you this:

Missouri Bullet Company

SmallBall!

#356125M
.356 Diameter
9mm Parabellum
124 Grain 9MM RN
Brinell 18
For General Shooting
NOTE: Seat to approximately 1.08"
Price per box of 500

Their 125 gr Cone nose feeds better. Has more of a pointed profile.

Missouri Bullet Company

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Still Running Against the Wind

You mean..read the instructions?
I took a round and started seating the bullet deeper (no, I will not fire this one!). It was seated at 1.131 and at 1.100 it plopped in and out of the RO's barrel just fine. The next batch will be set to a OAL of 1.08.
My son and a Glock took care of most of the MBC loads I had done. I don't call him "the brass maker" for nothing.

My S.a. RO 9mm is a very picky eater. I have to run most of my reloads through a Lee's Bulge Buster and then some don't want to chamber, CS said send it back and they would fix it as it is a known problem with the gun. I haven't yet and probably won't as I shoot the gun at the range 4 times a week.

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USN Retired/VN VET
M&P X5

"A really hard way to pull bullets"... I have the same problem with some coated RN bullets When the slide closes the bullet hits the leade and jams the slide closed but out of battery so it won't fire. I take a wooden dowel and a hammer to bop the slide open and if I have to hit it hard enough it extracts the brass and leaves the bullet in the barrel, which also dumps the powder all down in the internals.

I recently sent my Shield back to the factory. They replaced the barrel and it seems to be doing better.

I need to do the same with the Kel Tec. Closed up at the range yesterday and I had to bring it home and beat it out with hammer/dowel method. I want to use these guns for carry and SD, but if I can't rely on them, they are no good to me.

What irks me is that RN bullets (I don't use small ball) are supposed to be easy and reliable feeders in semi pistol but not with a short leade. I've seated them deeper and that reduces the problem but doesn't cure it.

I have a 3rd gen 5943 that is a garbage eater that I don't have to worrry about what I feed it. The two compact pistols, though have given lots of trouble with reloaded ammo, even when seating the bullets deep. I'm not a happy camper. I can't afford to shoot jacketed bullets all time. And I don't mind if a gun is a little picky about ammo, but nothing I make seems to work well with all three semis.

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"He was kinda funny lookin'"

No, I was not implying that. I guess they got a lot of questions so they posted that info.

I ran into the same "problem" with my CZ's and was concerned at first with seating them so short, I do not load max loads so it was not a big issue. I have switched over to the other cone nose bullets and they work just fine and will feed in any 9mm

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Still Running Against the Wind

rwsmith, have you tried any of the Berry's 115 or 124 grain HBRN-TP bullets yet, or just coated bullets on those 2 picky pistols? Those Berry's bullets are well less than $0.10 a round shipped from Powder Valley and they look and feed more like a RN jacketed bullet than a coated bullet. And you can load them up as high as you want as Berry's says they are good for 1500 fps.

And for a gun that might be something you might consider for carry, the Beretta PX4 Storm Subcompact is a bit chunky and wide (double stack mags) but it also carries 14 rounds of 9 MM. And it's a garbage eater too and I haven't found anything it won't digest so far. It's not picky on OAL or bullet design and doesn't get cranky even after 300 rounds have gone through it at the range without cleaning.

I believe my son's SIG 226 had this problem with the Montana Gold 124g 9mm rounds I used for IDPA. They worked fine in my Glocks, but some of 'em would not let the slide close fully on his SIG. It only took a few thousandths extra seating depth to fix the problem, and the seating die is still set for that OAL.

So, now you know why you should ALWAYS create a couple of inert dummy rounds whenever you load a new bullet to establish the COL that feeds and chambers in all your guns and why a "plunk" test for chambering, including coating the bullet and case with Magic Marker to establish WHERE the interference is, can save a lot of hassles.
PS: if a gun gets "cranky" after only 300 rounds, get it fixed.

The bullets that I'm having the most trouble with are 'lipstick' coated 124 grain RN bullets. I've been working on this problem since I got those compact guns withing the last 6 months.

Berry's is making coated bullets now? I skipped plated and went right to coated.

I'm going to try to find something of more tapered design. If I can use coated lead SWCs it would be ideal.

I got some translucent coated 'green' 124 gr SWC bullets I think from Bayou that shoot great but I haven't evaluated everything with all of my guns. And I'm reluctant to make a big order until they tested and reliable in all three guns.

Every time I head for the range and I feel like something is 'fixed' I come home disappointed and get back to work.

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"He was kinda funny lookin'"

No, they are a thick plated bullet, rwsmith. That is what the "TP" stands for in their naming scheme. But I haven't been able to make the plating fail yet and I've loaded them pretty hot and even shot them in my old Uzi with a 16" barrel. PV has them for a little less than $80/1000 and then you need to figure in shipping. So you can give a rough figure of around $100/1000 shipped to your door.

I had the same problem with my P226 and 6906. A few thousands less solved the SIG seating problem. Set it and forget it!