Case Bulges in .45acp

[~z]

I had this settin on FiringLine, with no nibbles, how about yall?

Anyone loaded the nosler 260 gn partition bullets in .45acp? I tried, but they are swelling the case wall the full length of the bullet, an obvious bulge. They dont fit the chamber check or the chamber. I'm using mixed brass, in a Blue 550 B with Dillion dies. I'm gettilg the bulge in milsurp brass and in commercial brass. I begin to get the bulge once I reach the canalure (sp) line I can seat them shallower without the bulge, but then they wont fit the magazine. Not that it matters but, I'm using 5.1gn Unique. Any advice? Is there a thinner walled brass I could use? Any other options?
Thanks
~z

 

[griz]

260 is a pretty big bullet for an ACP. I have loaded 255 grain bullets, but they were lead and fairly blunt. You might try Remington brass, it has slightly thinner walls. But I would think the shape of the inside of the case would be more important. In other words, the brand that has the longest case wall before they start tapering inside the case would be the best.

 

[~z]

Griz, thanks, Do you know of a case with a lower taper? Or is this something I'm gonna need to run the calipers across a bunch of cases to find one? Thanks
~z

 

[Werewolf]

Nominal bullet diameter for .45ACP bullets is .451 for jacketed and .452 for lead (IIRC). I'm not familiar with the Nosler bullet mentioned but have you measured the diameter? Sounds like it might be a bit on the big side.

I had some 230gr FMJ remington bullets once that were supposed to be .451. About a 1/3 of them ran .452 to .453.

I use a fairly heavy taper crimp and those .453 diameter bullets left a noticable bulge. If I backed off on the crimp most of the bulge would disappear.

 

[Taurus 617 CCW]

The Nosler Partition you mentioned was designed for the .45 Colt cartridge and in their load data book it was meant to be used in a Ruger Single Action, or a T/C Contender. Due to the size of the bullet, there is very little room inside the case for the powder to burn. This creates dangerously high pressures (case bulge), which are hard on the gun and brass case! You can call their pro shop at (541) 312-2506 to find out more information on loading larger than 230 gr. bullets in the ACP case. They have a guy in the office (Mike Harris) who specializes in technical loading questions. Good luck and stay safe.

 

[~z]

Wolf, they are .451, I measured about 20 or so and came up with .4515 at the largest. I'll try backing off the taper and see how it does.

Taurus, I thought they might be LC bullets at first but as above they are .451, arebt LC bullets .453 or so? I 'll take your advice and call the shop, I was concerned about the "burn room" But found load data for 260gn jacketed in a couple of books.
~z

 

[Rockstar]

I'm pretty sure that Taurus is correct, in that the 260gr. bullets are made for LC. I wouldn't put a lot of faith in "calling the shop." Call Nosler.

 

[~z]

Thats what I'm refering to, the Nosler Pro "Shop".
~z

 

[griz]

I'm not sure which brand would work best, but it should be easy to find out. Get a bunch of fired cases of different brands. I would scrounge around the firing line at the range if you don't have a variety handy. Do NOT size them. Just try hand seating the bullet in each brand and see in which brand the bullet seats deepest. Pliers might be needed.

And calling the Nosler shop sounds like a good idea. No need to reinvent the wheel.

 

[Bronson7]

Z, the older Colts for cast, are .454. The newer are .452. I guess for jacketed, subtract .001.
Bronson7

 

[Rockstar]

Z: Thought you meant the local shop where you bought the bullets.

 

[Taurus 617 CCW]

The pro shop is directly connected to Nosler, Inc. They have connected phone lines and Nosler owns Shooter's Pro Shop. I worked there for a while and am quite familiar with how they operated. Here is the number to the Nosler transfer desk 541-382-3921. Either Anita or Jenny will answer the phone and transfer you to Mike Harris, customer satisfaction and reloading tech. They won't recommend any unsafe load data. I can take a stroll down the street and ask them personally if you would like.

 

[~z]

Just talked to them, not recomended for the acp... Dont think I can return them, dont want them cluttering up my gun room, I guess I'll go buy a Casull.
~z

 

[~z]

lemons to lemonade
~z

 

[griz]

I guess I'll go buy a Casull

I like your reasoning.

 

[~z]

And I like my new Casull
~z

 

[redneck2]

All's well that ends well