44-77 brass

[Don McDowell]

Didn't have much trouble with the original run, haven't chambered any of this last batch, got a handful of them loaded and ready to go, but ended up chasing bulls home yesterday instead of shooting..

[Kurt]

I got 400 cases from the first run. About 1/3 I had to take the rim thickness down before I could close the breach. The rim thickness ran as thick as .082"

Kurt

[Nuclearcricket]

I got 400 cases from the first run. About 1/3 I had to take the rim thickness down before I could close the breach. The rim thickness ran as thick as .082"

Kurt

I have 92 cases from I guess their first run, marked Jameson, and have 60 coming from BACO, am I going to have to set up and double check the head thickness on all of them and then thin them accordingly? What should the nominal be on the head thickness?
Sam

[Don McDowell]

You'll need to watch those BACO 348 brass, as some of them are a bit big in the web to chamber in a Shiloh. Rim and neck thickness on those run amuch as well.

[Mike]

When I ordered my .44/77 from C. Sharps Arms I specified it to be chambered for Jamison brass. No problems encountered at all.

[Nuclearcricket]

I only have one case that is streached 348, all the rest is jameson brass. 92 from the first run and 60 coming from BACO from the current run.
Sam

[Nuclearcricket]

Since you had mentioned the variations in some of the rim thickness of first run Jameson 44-77 brass, you had me a bit scared. I set up this morning and checked the thickness of the 92 cases I currently have on hand. I do have 60 more cases that should be here next week and will check them while everything is set up. I set a nominal of .075" and then ran all my current cases through and came up with a total variation of .003". Most cases ran in the 0 to +.002" range with a few at the -.001 point. None of my cases were out of this tolerance range. When I get my shipment I will check the new run brass and report my findings from that.
Sam

[Kurt]

That don't sound bad Sam.

I checked mine by chambering my empty new cases and separated the once I could not close the breach or the once that rubbed tight closing the breach and took those and figured 8 them on some 220 grid paper till they would chamber.
I had to do the same with the first run of .44-90 bn brass also. The batch I did not have this problem.

[Nuclearcricket]

Well since I don't have a rifle chambered and barreled yet, and since it will be a roller, checking them the way you did would be a real pain in the behind. I checked mine with a dial indicator, indicator stand and a piece of aluminum squared and bored to fit the case. I also made a brass plate to set on top of the case head to give me a flat to drop the indicator point onto. I had this set up all ready made up because a while back I had set up to thin the rims on some 45-70 brass for guys to convert to 45-60 for some early Uberti's that were made with shallow head space.
I figured if need be I could set up the 44 brass and thin them the same way but I really was hoping I wouldn't have to since it is a slow process to thin the underside of the rims.
I guess if you take a look at the full picture, set the nominal at .076 you end up with a tolerance of +/- .0015. That really isn't all that bad at all.
When I take things in to get the barrel installed and chambered I will check the cases again and pick out a couple that are on the + side and have it head spaced those cases, that way I feel assured that all cases will work without problems.
Sam

[Kurt]

Sam,

For some reason I thought you had a .44-77 Shiloh.
Sorry