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256 Winchester Magnum

Old 07-21-2019, 03:38 PM
  #1  
Spike
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Default 256 Winchester Magnum

Looking for some load data for a 256 Winchester Magnum. I have a T/C Contender carbine with a 18" barrel that I would like to develop some loads for taking coyotes out to no more than 100 yards. Any one here have any pet loads they would like to share? I am looking at the Hornaday 75gr HP as a bullet that i think will do for this purpose, but there may be others that you have tried that may work better..
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Old 07-21-2019, 05:30 PM
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I don't have any load data for you. But that is an interesting and unique cartridge. And out of a contender should be a real sweet shooting set up.

-Jake
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Old 07-22-2019, 03:47 PM
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I havenít had one in a Contender, but have in a Hawkeye. Iíve strongly considered building one on a GP100 as well. H110/W296 has been my go-to powder for the 256, just like any other magnum rimmed cartridge round. With the light 75ís, you wonít be heavy enough, I donít believe, to warrant lilí gun, so in your shoes, Iíd keep my focus on H110/W296.
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Old 07-23-2019, 05:22 AM
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What bullets were you using, and what kind of accuracy
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Old 07-24-2019, 09:32 AM
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In a Contender, less constrained by tip length, I would spend my time with the 75 V max over H110/W296 or H4227. From my Hawkeye, scoped and benched I generally saw about 2.5-3Ē at 100yrds as my standard for that pistol. But thatís saying more about the platform than the cartridge or bullet - a Contender with an appropriate load, scoped and benched, would beat that with ease.
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Old 07-24-2019, 02:32 PM
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I am currently loading the Hornady 75 gr JHP over 19.0 grains of 296. Getting around 2550 FPS and near 1" groups at 100 yards. I just wanted to see if anyone had a pet load that I should try. I like to tinker with loads, always looking for that "one" best load.
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Old 07-27-2019, 07:05 PM
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Itís an obscure round, and the platforms in which it was offered were extremely varied - leverguns, singleshot break actions, and singleshot rotating breechblock pistols (built on a revolver frame, no less)... what worked well for my Hawkeye would have no bearing on what will work well in your Contender, other than to confirm, for magnum revolver cartridges, itís difficult to beat W296/H110, H4227, and 2400 as top contenders - backed up by the fact they remained to work so well in my Hawkeye in 256. Seems like you donít have much to complain about with your 19.0 grn load, however!
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Old 12-30-2019, 04:00 PM
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Here ya' go,
https://web.archive.org/web/20170830...p?CaliberID=29

or http://stevespages.com/257_6.html

Also get a copy of the 'Complete Reloading Manual for the Thompson Center Contender" extensive loads recommended by many bullet manufacturers.

Good luck, Great little round.
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Old 02-13-2020, 10:23 AM
  #9  
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... just a recommendation:
Keep your bullets light.
The 1:10" twist in a TC barrel won't stabilize the heavies.
good shooting to ya'.
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