Home Forums Hunting & Shooting Handguns 400 corbon

Who's got one loads ? or other advice ?

Underwood Ammo has the 400 Corbon in their factory line of Ammo.

I worked with it some years ago. It's an interesting round, but not easy to handload. In particular, it's hard to keep the bullets from setting back in feeding, because the base is below the neck, hanging in space.

If you're buying or building a pistol from scratch, go with a 10mm. If you already have a .45 ACP, it adds some interesting flexibility, with only a barrel and dies.

The 40 Super is a better way to go IMHO.

Much better brass.

....but can you find any brass? The few discussions I have seen over on the 1911 Forums indicates the only maker is Starline and it is a special production item done only when they get a big enough backorder which is about 60K rounds...could be waiting for a while.

I ended up with a box of CorBon 135 grain ammo and found a ROTO 4M barrel for $50.00 that dropped right into a 1968 Colt GM I have. Shot well but for as little as I shoot the .400 I don't plan on reloading for it...

Bob

I had a Safari Arms 1911 barrel. It would not accept reformed .45 ACP brass as the neck was too tight; I had to use Corbon's brass, which was readily available. At the time Corbon had also switched to small primers, as the std .45 ACP firing pins caused problems with warmer loads. I have not looked recently, but at one time Corbon had pretty good info about reloading the .400 CB on their site.

To get bullets to not set back in feeding, I had to reduce the expander plug diameter, then tumble after sizing to remove all traces of lube, then apply a heavy taper crimp to the bullets. If you have channelured bullets or a channelure tool to apply it to bullets, that's probably the best solution.

I found it worked very well with reduced loads. Subsonic 135's had very mild recoil, and functioned reliably in my Colt. If you have a recoil sensitive shooter at the range, swap in the .400 CB barrel and make the .45 easier to handle.

Yes my deal is to drop a barrel in a glock 30 . As far as bullet set back goes , I know a lot of guys had fits loading for the 357 sig , I never experienced but I set up dies to head space off the shoulder and trimmed to the shortest specs and then used a firm roll crimp , thinking the same would work for this too. Last I looked midway had brass