Is there a round all ready done to this. If so what's it called. Thinking about a new project. Thanks
Is there a round all ready done to this. If so what's it called. Thinking about a new project. Thanks
Don't know of any such conversion but a custom die maker could fix you up.
20 PPC might be a better choice.
Calamity Jake
NRA Life Member
SASS 15704
Shoot straight, keepem in the ten ring.
I think we can call that the "20 faster-Fazer".
I need a rimmed case, I want to use a martini action. Originally I thought of 357 max to 20 cal, but necking down the 256 might be easier. Have to figure out the pressures somehow though.
What case length are you looking to have. How about 20 vartarg on a rimmed case. 221 fireball necked to .20 caliber. It would be about 1.400" I think. Or short chamber it and cut dies down to fit.
Try the 357max first. Run it into a 30 mauser die first then a 256, anneal then try to 20
Take 1/2 750 liter single malt and it will pass and Light a Cuban cigar with a $100 reserve note and you will come out ahead.
Thanks for the help. But after reading and actually thinking about what I all ready have close to the planned project. I think I'll just go for 17 Hornet for ease of dies and brass., and I don't have a 17
Gotta make the 256 brass before you can neck it does, dog gone stuff is scarce nowadays! F you know where a bunch is , post it up, several of us shoot it.
I think you'll like the 17 Hornet, there is a 20 version as well, I believe.
“You don’t practice until you get it right. You practice until you can’t get it wrong.” Jason Elam, All-Pro kicker, Denver Broncos
I have about 10K cases on hand, new, runs 80.00 per 100.
Ron Reed
Oklahoma City, OK
Should be about like a rimmed .20 Fireball based on 17 fireball or 221 Fireball. Could probably use a Fireball reamer, case head dimensions are about the same.
If he goes with the .357 Max yes. The .256 Win mag is more or less based on the .357 Mag case.
Ron Reed
Oklahoma City, OK
Yeah, the Fireball case length IS 1.4 and the .256 IS 1.281. In my Marlin 62 .256 I used 221 Fireball cases run through the 256 die and trimmed. Worked fairly well, I have formed 256 from 357 but it is a multi-step, multi-anneal PITA, Powder Valley lists 22 Jet made by PRVI. Maybe a better place to start a 20-256 or even fireform 256. Wasn't the 357 Maxi just a LONG 357 Mag which was a LONG 38 Spcl, to quibble.
BP | Bronze Point | IMR | Improved Military Rifle | PTD | Pointed |
BR | Bench Rest | M | Magnum | RN | Round Nose |
BT | Boat Tail | PL | Power-Lokt | SP | Soft Point |
C | Compressed Charge | PR | Primer | SPCL | Soft Point "Core-Lokt" |
HP | Hollow Point | PSPCL | Pointed Soft Point "Core Lokt" | C.O.L. | Cartridge Overall Length |
PSP | Pointed Soft Point | Spz | Spitzer Point | SBT | Spitzer Boat Tail |
LRN | Lead Round Nose | LWC | Lead Wad Cutter | LSWC | Lead Semi Wad Cutter |
GC | Gas Check |