Author Topic: Trouble sizing brass from /06 to 270 (Read 452 times)

Gun Runner · « **on:** November 18, 2004, 08:29:53 PM »

Ran a dz cases thru my RCBS sizer die and found a spare tire at the base of the neck. Changed my die settings, still the same thing, tried more lube/less lube. These cases had been resized for the /06 and I decided I had more than enough so thought would make some 270 casesout of some of them. There all win brass. Ifin all else fails it will give me an excuse to drive over to RCBS (54 miles away) and check with them. Course this is gonna cost me more money cause will always find something else I need. :lol:

Gun Runner

Lead pot · « **Reply #1 on:** November 19, 2004, 08:28:58 AM »

Did you anneal the necks first? if not try it.
Kurt

Siskiyou · « **Reply #2 on:** November 19, 2004, 10:03:03 AM »

Gun Runner: I know the wind is suppose to blow the fog out of the valley, but you do not need to make a trip to Oroville. I have been resizing both G.I. brass and commercial 06 brass into .270 brass for years. That small "hump: at the base of the downsized neck is common. I check the "re-necked" case in my .270 after the resizing process. If the case chambers I go ahead and reload it.

The shoulder hump cleans-up with the first firing.(In effect fire-forming) When my son was in training with his .270 I loaded up a couple of hundred rounds for him. They loads were all based on the resized GI cases. No problems. I have also cranked out a lot of these for my own shooting. A good source of .270 cases. I have not had to anneal the cases.

longwinters · « **Reply #3 on:** November 19, 2004, 06:15:13 PM »

Siskiyou is right on. I do the same thing for my 280, with regular brass, and it works just fine.

Long

Gun Runner · « **Reply #4 on:** November 19, 2004, 08:52:53 PM »

Thanks guys. Siskiyou you probable saved me a bunch of cash bu my not going to RCBS.

.

Gun Runner

Nobade · « **Reply #5 on:** November 20, 2004, 10:59:58 AM »

Isn't the .270 longer than the 30-06?

Loader 3009 · « **Reply #6 on:** November 21, 2004, 01:58:10 AM »

I resize .270 to .25-'06. If I don't anneal after re-sizing the case may separate at the shoulder upon firing. The same should hold true for the '06/.270 operation.

Siskiyou · « **Reply #7 on:** November 21, 2004, 10:34:33 AM »

It is slightly shorter but it has caused no problems. In fact trimming is not an issue because of the shorter case. I still load to near maximum bullet length and have had no problems with bullet retention. The shortness is in the neck, not the main case body.

Having fired a few hundred rounds from 06 to. .270 cases I have not had a shoulder separation problem. I have been doing this little operation since the late 60's.

I am aware that when you radically reduce neck size you can have more problems. The more pronounce problems show up when you start reducing neck size from .30 caliber to .243 (308 to 243). Neck thickening becomes an issue. I have not reduced from .30 cal. to .25 cal. I suspect that there are limits in caliber increase or reduction when the working of the brass is more radical. Reducing to .264 or .257 caliber maybe the point where annealing the cases become critical. Annealing may become an issue when reloading cases after "x" number of times, be they standard factory cases or custom made cases.

A more radical case forming process that I am involved with is creating .300 Savage cases from 7.62 NATO machine gun cases. I first run the case with a 30-06 full length die(Lee) to punch out the crimped primer and resize the case walls. I then run the 7.62 case thru a full length RCBS Small Base .300 Savage die. I then trim the case to the proper length. This has provided me a life time supply of good .300 Savage cases. This has been a very successful process.

I need to drop a dime on my brother who has a number of custom rounds he reloads. Many of them are based on the .284 Win. case and the 30-06. I will check with him because he may fire a few hundred rounds a month. A living breathing, practicing serious reloader.

I must admit that in my learning stage with factory cases I created some ugly loads in the beginning. But I try not to repeat those errors. Oops did I say I maybe imperfect.