[Yankee]

Can anyone tell me if it is necessary to bell out the neck of these cases after resizing or should the bullet be able to be pressed straight in?

[Sunray]

Yep. Load 'em just like a handgun cartridge.

[cfullgraf]

The cases will reload better and easier if there is a little belling of the case mouth.

30 Carbine headspaces on the mouth, so taper crimp to remove the bell after seating the bullet.

[greyling22]

flare the case mouth just enough to get the bullet in. just like a handgun.

30 carb does headspace on the mouth, and a taper crimp may be best, but I've not yet had any problems using a roll crimp.

[USSR]

Yes, bell them. The hands-down best die for this is the Lyman Type M die.

Don

[ReloaderFred]

The M1 Carbine round also seems to "grow" faster than most bottleneck rounds. I tend to trim with every loading with this caliber.

Hope this helps.

Fred

[medalguy]

Fred is right. This case headspaces on the case mouth so length is critical-- you may need to trim every reloading, or at least check the length.

[greyling22]

I have every intention of buying a case trimmer eventually, and none of my cases have been loaded more than 4 times yet, but they're still firing and feeding great without a trim and with a roll crimp. I'm pretty new to reloading 30 carbine though. I've only reloaded a thousand or so.

I guess I should put a trimmer on my next order if they really grow that fast though. I've been loading it just like a 9 or a 357 and I've loaded a jillion of them. I bought trimmers for my 44 and 357 at one point and not one needed trimming. and they've been used a lot. It was very anticlimactic. My 223 sure grows though.

[cfullgraf]

I guess I should put a trimmer on my next order if they really grow that fast though. I've been loading it just like a 9 or a 357 and I've loaded a jillion of them. I bought trimmers for my 44 and 357 at one point and not one needed trimming. and they've been used a lot. It was very anticlimactic. My 223 sure grows though.

I trim 30 Carbine only when it is too long, over the max case length. About 25% to 50% require trimming at each firing/resizing cycle.

Depending on how aggressive your roll crimp is, roll crimps are not advisable with 30 carbine. It could cause high pressures or erratic ignition depending upon how deep the case goes into the end of the chamber. If you crimp only to remove the bell in the case mouth, you would be fine.

Straight walled pistol cases rarely need trimming, if ever. Sometimes you want to be able to have identical crimps to all rounds and that requires the cases to be the same length.

[USSR]

The M1 Carbine round also seems to "grow" faster than most bottleneck rounds. I tend to trim with every loading with this caliber.


+1.

Don