Question on M-1 carbine misfires

[PhillipM]

When I first started reloading I didn't know about brass flow and my carbine would finally fail to go into battery as the cases grew.

[MG08]

Would have to go with the reload too. Lots of good troubleshooting info in this thread, but it seems your load is pretty light. I would have to go check, but I was loading 4227 in carbine loads, and seem to remember my load was several grains more. I ram into issues with the ammo not being "hot" enough to cycle one of my M2 carbines reliably, ( hammer down on an unfired round) and I had to bump the load up a bit. I had some commercial reloads that did the same thing. No pressure signs and I do not have the Chrono data, but all cycled the M2s and M1s just fine after the increase.

How does factory ammo run in the gun ?

[ChipS]

As you were. Carbine case legth is specified 1.280" mimimum to 1.290" maximum. Many responsible reloaders recommend checking/trimming every case to minimum case length specification every time the case is reloaded, to prevent out-of-battery ignition.

[da gimp]

mg08....... does that/ or did that particular M2 reliably have the hammer hooked with manual cycling of the action? Thank you sir.

[ripper90]

I have this trouble in my carbines when I use CCI 41 primers. I believe they do have thicker cups to prevent slam fires in the 223 cartridge for which they were made. I quit using them in the carbine.

Ripper90

[ncblksmth1]

Tuna is absolutely correct about this. Check the case length on your cases I bet you will find the ones that misfire are short. I was able to buy a carbine with the same problem. I found the answer when I test fired. Apparently when the rounds were chambered the brass slipped forward and though the primer was struck it was lightly struck and did not fire. Some of the discount manufacturers used short brass. Try standard factory loads or brass and you will find a difference.

[glindes]

I had a problems with random non-firing 20 ga shotshell reloads. I was using a single stage MEC JR. press, where each primer must be individually placed in the primer cup by hand. 'Sent primers back to Remington and they said that the propellant was wet, with water. The condensation from my beverage glass! ---to make a long story short... Ever vigilant ! Geoff in DE