All, I headed out to the range yesterday to try out my newly arrived Buffalo Bore ammo in 45LC in my 1894CBC. I intended this ammo to be for hunting hogs here in Florida and was very excited by the power of the round but not by my inability to cycle a second shot quicker than 20 seconds after the first! Both of the BB rounds (300gr JFN at 1350 FPS & 260gr JHP at 1450 FPS) seemed to swell up so hot that I couldn't eject them for almost 20 seconds - I'm pretty sure the brass was just running so hot that it swelled and then I had to wait for it to cool a bit before I could cycle the round - the more I worked the 260 gr JHP through it the better it ran but I'm pretty sure that's because the barrel was hot - not a situation I'll have in the field. Need I be worried here? I'm thinking I am. What are my options on ammo - I was really counting on the BB to be my go round for hogs.
I was also running a reload, can't remeber the grain. but at 900FPS and it was moving through the rifle just fine. I shot these prior to the BB, between some of the BB rounds (a little rest for the shoulder), and after the BB before I left for home, never with any problems.
Is this brass swelling? Do I just need to "work" this rifle through more rounds (maybe 400 through it to date)? Am I not cleaning it enough (I think I am but maybe I'm not)?
Thanks in adavnce for the help.

That's bad - very bad. Classic sign of pressure too high for your gun, although it could be a bad (rough, out of round, oversized, etc.) chamber.

Might call /email Buffalo Bore and see what they say. There is no SAAMI spec for heavy .45 colt rounds, so they might appreciate the feedback.

Find out what is wrong, before you shoot any more.

Thanks MikeG, just sent an email to Buffalo Bore. Any ideas of other hot, but maybe not so hot factory rounds in a 45LC.

The response from BB, I'll try this out and see if it works. I'm hoping it will.---

If you fire lead bullets prior to firing our jacketed ammo, you can get sticky extraction. The lead bullets leave a deposit in the chamber right at the case mouth and in the throat area of the barrel. This deposit raises pressures substantialy when you then fire a jacketed bullet with out first cleaning the chamber and throat area of the barrel. Cheap lead rounds are just that, cheap.

Use a lead remover and a bore brush and scrub your chamber and throat area of your barrel. Then dry patch the barrel. Then shoot all of our jacketed rounds you like and you'll have no extraction problems.

Yes our brass swells to fill the chamber, just like all brass that runs at higher pressures. This is not what is causing your extraction problem in and of itself. The lead deposits combined with our ammo's higher pressure is causing the problem. We've seen it many times.

Sounds reasonable, thanks for sharing. Let us know how the next shooting session goes.....

Also read Marshall's Tech Guide on this to see what you are doing to your barrel and it sounds like that little part of your chamber. I believe he said you are laying down a layer of what turns out to be soulder in your barrel.

the explanation from BB sure sounds plausable.

Sure enough, BB was right. I used a lead remover, gave the barrel a little scrub, and took the rifle out to the range today. Ran through maybe 35 BB rounds of the 2 types before I ran anything else through it and didn''t have a single extraction issue - Now if I can just get in sighted in where I want it!

Hey, that's great news, thanks for sharing that tip!!!

That is good news! I don't know how many times folks have asked about stuff like this and it usually ends up as a dirty chamber. I neglect mine because they require special attention and it will bit me again. A week extractor can be made to look good by a clean chamber.