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Old December 24th, 2018, 04:44 PM #1
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M1 Carbine powder/cycling..?

lil gun, or 4227 are what i have (on hand). I'm curious if anyone has reloaded 110gr w/ these two powders and had consistent cycling.

Not asking about other powders at this time.. just these two. I don't shoot it enough to justify ANOTHER powder just to get 100% cycling.

I replaced the recoil spring a while back and only had about 100 rounds thru the new spring. It ejects the round fine, but most of the time it doesn't pick up the next one or if it does.. it gets hung up on the way into the chamber.

Maybe it's not a powder problem.>??
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Old December 24th, 2018, 04:59 PM #2
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reloading data available on the website
http://www.hodgdonreloading.com/

I have used 4227 , 110 RN jacketed and 14gr 4227 to good success which is within the range on the website.

Have you chrono'd your reloads?
Have you tried any factory ammo?
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Old December 26th, 2018, 07:10 AM #3
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i've looked at a couple sites/books. Perhaps the powder i had was stored poorly or i dind't have enough crimp on the brass itself.. idk. i took 30 rounds out to the farm yesterday. zero failures. 15gr of lil gun. i'm going to try 4227 next because i have a few pounds of that but swear i tried it before and it didn't cycle for me.

most things worth testing.. is worth testing a 2nd time.

I have NOT chronoed my ammo but even factory ammo was giving me problems. it was.. Armscore no idea if that's "good/bad/bold/ugly" for m1 carbine.. it's what was in stock.
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Old December 26th, 2018, 10:03 AM #4
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15 gr of lil gun is shown as max on hodgdon site, 14.5 with 4227. I checked 4 manuals and all showed the same data as hodgdon. Perhaps your new recoil spring is stronger than the previous one and not allowing the bolt to go far enough back to pick up another round. You may be right about not enough crimp. I use 15 gr of H-110 in mine and never an issue. Have you checked the gas port and piston to be sure its clear? I replaced the my piston with a newer version.
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Old December 26th, 2018, 01:04 PM #5
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Quote:
Originally Posted by Seabee View Post
15 gr of lil gun is shown as max on hodgdon site, 14.5 with 4227. I checked 4 manuals and all showed the same data as hodgdon. Perhaps your new recoil spring is stronger than the previous one and not allowing the bolt to go far enough back to pick up another round. You may be right about not enough crimp. I use 15 gr of H-110 in mine and never an issue. Have you checked the gas port and piston to be sure its clear? I replaced the my piston with a newer version.
I did take it down and clear the piston. I wasn't sure what i was doing to be honest.. but youtube comes to the rescue again! I still have the old spring. i have a 50cal ammo box i keep all the "orig parts" in for various guns. old triggers, springs, screws .. etc etc.

i'm thinking it's the crimp.. honestly.. i say that because i didn't have a crimp die before. i had resizer, powder thru, and bullet seating. I have sense added a factory crimp die. This is only negated by, it failing to cycle factory ammo. This failure was with the old and new recoil spring.

i'm going to try again w/ less powder.. still w/in the specs though. Previous testing showed that i wasn't able to get it to cycle unless i went max or slightly OVER max powder charge, which i didn't want to do. So now i'll try 4227 and lil gun again, stepping it down a bit until i reach low end of charge info or failure to cycle.

the goal is.. fun little plinking round for dueling trees and what not for my family, as long as they are also SAFE rounds.
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Old December 26th, 2018, 06:23 PM #6
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I'd focus on getting it working with factory ammo first. I've heard some of the imported ammo can be a little light (Aquila, PPU). Maybe try some Remington (I've seen it at gun shows for $23-25 a box). If it doesn't work with factory ammo, something else is wrong. I think you're wasting your time tweaking handloads if there is a mechanical problem. Is the castle nut that holds the piston in tight? Does it stay tight after it's been shot? What mags are you using? Any of them GI? Proper lubrication?
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Old December 27th, 2018, 04:06 PM #7
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Quote:
Originally Posted by Art3 View Post
I'd focus on getting it working with factory ammo first. I've heard some of the imported ammo can be a little light (Aquila, PPU). Maybe try some Remington (I've seen it at gun shows for $23-25 a box). If it doesn't work with factory ammo, something else is wrong. I think you're wasting your time tweaking hand loads if there is a mechanical problem. Is the castle nut that holds the piston in tight? Does it stay tight after it's been shot? What mags are you using? Any of them GI? Proper lubrication?
i have some new and some orig GI magazines, have to dbl check the nut but last inspection didn't seem to reveal anything fishy. the bolt is silly smooth, it's so smooth compared to m1a but it's a much smaller spring too.

is it fair to assume.. that any load listed for 30 carbine will cycle the m1 carbine? If so, i see no reason building a load for it is a bad thing. I mean.. i know 15gr works fine.. now i'll go down .3gr until it no longer consistently cycles OR until i get to the min charge.
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Old January 2nd, 2019, 08:55 PM #8
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Never had a problem with 4227. In recent years I've had better resaults with other powders, fps wise.
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Old January 5th, 2019, 03:51 PM #9
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Went to the range w/ 5 groups of 3 powders and charge sets. I'm guessing there's a problem with crimp because in my testing the cycling was hit or miss. I even retested the load i had 100% success with. I broke down and got another dillon toolhead so once i get it working, it's "set and forget"... well not really "forget" but you all get the idea.
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Old January 6th, 2019, 07:16 AM #10
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Are you measuring the cases and trimming each time?

I have heard that .30 Carbine is VERY sensitive to case length.
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