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Thread: 9mm cast lead not feeding

  1. #21
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    I am confused as well. Sometimes (rarely) they cycle fine and consecutive rounds will fire. Sometimes they go into battery fine, but I get a light primer strike. Sometimes they seem to just get hung up going into battery. The slide is held back by the round, and the bullet does not clear the feed ramp into the chamber. Can not figure out any pattern, rhyme or reason. All pass the plunk test. Both weapons are new, and so is the brass. Bought as Win USA, and have been reloaded one to three times. I use a tumbler and one shot case lube. Bullets lubed with liquid Alox, and sent through a sizing die. Maybe polish feed ramps on both the GLOCK and AR-9?

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    Quote Originally Posted by marcglock30 View Post
    I am confused as well. Sometimes (rarely) they cycle fine and consecutive rounds will fire. Sometimes they go into battery fine, but I get a light primer strike. Sometimes they seem to just get hung up going into battery. The slide is held back by the round, and the bullet does not clear the feed ramp into the chamber. Can not figure out any pattern, rhyme or reason. All pass the plunk test. Both weapons are new, and so is the brass. Bought as Win USA, and have been reloaded one to three times. I use a tumbler and one shot case lube. Bullets lubed with liquid Alox, and sent through a sizing die. Maybe polish feed ramps on both the GLOCK and AR-9?
    I can’t imagine how polishing feed ramps will hurt anything, can only be an improvement, but I wonder if those bullets are just not going to work for your guns. Maybe try a different bullet; buy a small batch of cast lead (100) and try them. If they work okay, it might give you an answer, even if it isn’t what you prefer.
    Knowing when and how...

  3. #23
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    Semi wadcutters are always dicey in an autoloader. I had a few hundred jacketed SWC boolits that simply wouldn't feed at all in a Sig P220 but in other guns, fed just fine. Similar experiences with different SWC boolits in 9mm. Jacketed SWC sometimes feeds, sometimes not. Lead SWC, same story.

    I just don't push it. Use them in the gun where they work.

    As for the light strikes, that's a different problem. Your plunk photo looks correct to me so it could be that your crimp has allowed the cartridges to load deep. Or the firing pin mechanism in the gun has an issue. Perhaps a thorough cleaning and a drop of oil (not grease) will resolve the issue. Of course the best test there is does it fire factory ammo without the light strikes. Apologies if I missed it in the thread.

    --Wag--
    "Great genius will always encounter fierce opposition from mediocre minds." --Albert Einstein.

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  5. #24
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    A couple of things to add. I went back and read your first post after reading Wags response. I didn't notice you were using a conical bullet. Switch to a round nose, like wag said some guns just don't like certain bullets but everything should feed a round nose. Secondly i see you said you're using one shot. Are you using carbide dies? If so ditch the case lube, you don't need it and it could be gumming up your chamber slightly. My last step now in case prep is cleaning so all lube is removed and i have noticed some guns just feed better now. Also how much alox are you using? That stuff is real sticky and could be gumming stuff up as well. You only need a tiny amount. When i first started casting i had a tendency to use too much and noticed it would gum up the feed ramp and chamber causing some problems feeding occasionally. If your bullets have a gold tint to them i would say you're using too much. You mentioned you have to push the slide closed sometimes. I have this happen on one of my 45's every so often with cast bullets. remember they are(or should be) sized .001 bigger which can create a slight bulge in the case. That doesn't always mix well with a tight chamber. it can be exaggerated if the bullet seats at a slight angle. When it happens to me the slide will stop about 1/2" short of battery and just a slight nudge with my thumb seats it fully. I have this problem much less since i started using Hi-tek bullet coating instead of lube so it may have mostly been a build up of lube in the chamber. it doesn't take a lot to mess things ups.
    Is the light primer strikes both guns or one? If one do a tear down and clean. If its both try backing your crimp back so it won't do the plunk test and then adjust your die in very small increments until it will plunk test. it's possible you have to much like was said above. if you're using Lee crimp dies i don't think you can give it too much crimp but if you're using RCBS or others you can easily give it too much.

    Sometime when casting and loading little things can muck things up especially when loading for multiple guns. I've worked out a bunch of little problems over the years by just doing small changes(one at a time). Right now everything i load(except 32acp) is very reliable with only one of my 45's that will occasionally not go fully into battery. speaking of 32 acp....i should ask about that in another thread.

  6. #25
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    Funny you mention the boolit lube, Square Target. I was just about to say that! Lead boolits do need lube but if you're getting that sticky feeling, you should switch lubes.

    --Wag--
    "Great genius will always encounter fierce opposition from mediocre minds." --Albert Einstein.

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    So, based on all of your collective feedback, I have prepared a little experiment for the next range trip. I have reamed out the primer pockets of 80 rounds and tried to set the primers a little deeper to see if it helps my light primer strike issue. I have left ten rounds the way I have been preparing them. I tumbled 10 to knock of any excess bullet or case lube. I then did the same for 10 at length I was using, and 10 at factory overall length. I then ran a group of each of those variables without applying factory crimp, giving me 8 groups of 10. We'll see what happens. I think I'll get some range time next week.

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    Oh, I forgot to mention, I also plan to polish both feed ramps (Glock 17 clone and ar-9), as I am experiencing these problems in both.

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    Update... A lot of work for nothing. They all had the same problem. I do notice that even though I am, in theory, using plenty of powder, they are all anemic compared to factory rounds. I don't want to create an unsafe situation, but I can't help but wonder if the maximum, not to exceed amount of powder listed in my Lee literature for Win 231 with 124 gr leadheads may be low...

  10. #29
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    Going by past discussions, the only difference is the bullets, going from jacketed to lead. If it is the same batch of powder as you used with the jacketed bullets, then the only variable is the bullets and possibly COL. I would buy some hard cast bullets of the same size and try them, if you have double checked the dimensions on yours already. If for some reason you are using a new container of powder since starting with your lead bullets, you might switch powders.
    Knowing when and how...

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