Author Topic: 256 Super Mag (Read 783 times)

casper_zip · « **on:** July 04, 2003, 10:50:27 AM »

:-)

Hello there:

If anyone shoots the 256 Super Mag in the Contender, I would appreciate hearing from you. I am in the process of developing loads for mine at this time. I also shoot/load for the 256 Win. Mag. and so far, so good on loads for it. Thanks in advance.

Casper

tlyne · « **Reply #1 on:** July 04, 2003, 11:35:18 AM »

My barrel is cut so I can use 221 firball brass or 357 brass by changing the extactor. Load Data: Using 221 brass, rem 7 1/2 Br primer, H4227 powder wt. 14.0 grs, 85 gr Nosler Bt #43004 bullet , OAL 2.189 length, 14 13/16 Van Horn Contender barrel.. shoots Approx 2290 fps. You know the rule start lower and work up 5 to 10%. Will shot well If I do my part. Twyman

nitemann · « **Reply #2 on:** July 04, 2003, 12:11:56 PM »

Casper, there's a good article in one of my old Varmint Masters magazines on the 256 Super Mag. It was quite an improvement over the standard 256WM if I remember correctly. I'll look to see if I can find it and post the data they have listed. Rick

nitemann · « **Reply #3 on:** July 04, 2003, 12:38:54 PM »

Casper I found the article. It is in the Jan 2001 (#37) Varmint Hunter magazine. PM me with your e-mail address and i'll scan the load data and send it to you. Rick

Moe · « **Reply #4 on:** July 04, 2003, 01:23:34 PM »

I have a .256 SM also, by VVCG. I shoot the 75 gr hp's. Deadly accurate 16.5 inch Encore barrel. I used the same load data from the Varmint Hunter MAG. H4227 is all I have tried so far. I believe(without looking) that I use 19.0-19.5 grains of H4227. There is a picture of it farther down this forum.

casper_zip · « **Reply #5 on:** July 05, 2003, 10:43:33 AM »

:grin:

Thanks to all who replied and helping me out. Now, how many use 221 or 223 brass to make the 256 Super Mag ?? I found out the hard way, even with annealing, things don't turn out rosy. Anyone got an easy way to whip this rascal, by making it a lot easier to form brass for it ??
Again, thanks in advance.

Casper

Moe · « **Reply #6 on:** July 05, 2003, 01:19:37 PM »

Zip, I have a shortened 300 Win Mag die like the Varmint Hunter Mag article says, drops it down to .30 cal, then I run it into the .256 and I'm set. I have ruined a few cases but only because I wasn't paying good attention at the time. I had seperated some cases that were annealed or not. Didn't notice any difference in case life. Both are still going strong, at least 6 or 7 times for each. I got all the die set up with the barrel when I bought it.

contender85 · « **Reply #7 on:** July 05, 2003, 04:33:16 PM »

Zip,
Before I got around to shortening a 30-06 sizer, I used a 30 Herrett die first then right into to the 256 die, both work well but like Moe says you'll ruin a few if you're not paying attention......havent shot it enough yet to comment on case life.

BTW Moe, thats a good shooting barrel, Thanks! :lol:
Mark

casper_zip · « **Reply #8 on:** July 06, 2003, 04:10:04 AM »

:grin:

Hello Again:

Again, many thanks to all of ya'll. I dug out my 30 Mauser Pistol dies that I bought just for things like reforming brass. I used them not long ago, helped bro-in-law form cases for his 256 Win Mag from 357 brass. Got my dies back, and now, I'm using the 30 Mauser Pistol dies (Lee) and they work wonderful. I am trimming now necking my 223 brass to 30 Caliber, then run them in just enough to set the shoulder and neck them on down to 256 Super Mag. I then trim them off the correct length. Just had time to test fire this morning before getting ready to head off to church, and done good. I will try a few more, then change my extractor out to rimless. Belive me, I lost too many cases, even with annealing, and careful attention to details trying the 357 Maximum cases. I'm going to save them for my next project. Going to get me a 30 Max barrel. That will be a breeze, all I will have to do, neck them down to 30 Cal. with my 30 Mauser Pistol dies and fireform. Thanks to all again.

Casper