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Author
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Topic: Somebody had to do it, so...
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knockemdown
Our staff photo editing Guru, par excellence
Member # 3588
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posted September 27, 2017 07:34 AM
may as well be me ![[Smile]](smile.gif)
Got an itch to build a wildcat that borders on insane. Less than zero shits given regarding barrel life, efficiency, or powder burn. Just wanted something that would kick azz on just about any other .224 hotrod I could think of. There's no replacement for displacement, so I took a parent SAUM case and necked it down to .224 caliber! You may recall me pondering doing this a couple years back? Anyhoo, it only took a little tinkering on the bench, and my ".220REDLINE" was born...
Parent brass is Norma 7SAUM. Used my Redding Type S dies & various bushings to neck down brass in three steps. Then a quick run on the K&M neck turner to shave & true necks to .015", and viola....220REDLINE brass!
Here's an 80gr AMAX/REDLINE next to a 140JLK/6.5SAUM4s:
Sent dummy rounds off to JGS Tooling to get freebore dimensions ironed out, and a custom reamer made. Also got a 1:9" Brux on order, so we're full steam ahead! Hope to have this badazz ready to test before Christmas...
Without getting bogged down with the 'methods behind my madness', expectations are to launch an 75-80gr .224 bullets in the 3750-3900fps range from a 26-27" barrel. Based on performance & case capacity of current monster .224 hotrods like the Vais, Howell, .22-6AI and .22-284, hoping this .220REDLINE will be able to cruise right on past 'em, courtesy of a full payload of ultra slow burn powder...
Only one way to find out! And what better way than to see for one's self?
Posts: 2202 | From: behind fascist lines | Registered: Mar 2010
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DAA
Utah/Promoted WESTERN REGIONAL Hunt Director
Member # 11
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posted September 27, 2017 07:49 AM
You know I'm going to love it .
- DAA
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"Oh yeah, they're gonna talk to you, and talk to you, and talk to you about individual freedom, but they see a free individual, it's gonna scare 'em." -- George Hanson, Easy Rider, 1969.
Rocky Mountain Varmint Hunter
Posts: 2676 | From: Salt Lake City, UT | Registered: Jan 2003
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Leonard
HMFIC
Member # 2
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posted September 27, 2017 08:13 AM
The powder is the question
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EL BEE Knows It All and Done It All.
Don't piss me off!
Posts: 31459 | From: Upland, CA | Registered: Jan 2003
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knockemdown
Our staff photo editing Guru, par excellence
Member # 3588
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posted September 28, 2017 03:29 AM
Messing with Quickload program helped with regard to powder possibilities. H1000, Retumbo, and RL33 all look real good, from what I can tell...
Utilizing all that extra case capacity with slow burn fuel was sorta my reasoning for this project. Hopefully, I can keep case pressures in the 'mild' range while generating the kinda velocities that will turn some heads!
Posts: 2202 | From: behind fascist lines | Registered: Mar 2010
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Leonard
HMFIC
Member # 2
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posted September 28, 2017 07:33 AM
So, what's the case capacity? About like a 30'06,60 grains?
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EL BEE Knows It All and Done It All.
Don't piss me off!
Posts: 31459 | From: Upland, CA | Registered: Jan 2003
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knockemdown
Our staff photo editing Guru, par excellence
Member # 3588
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posted September 28, 2017 09:49 AM
Parent SAUM case hold ~72 grains H2o. Obviously, necking down will impinge on that a bit. I'll weigh some REDLINE cases after 1x fired to get a verifiable measurement...
For comparison's sake, the REDLINE will still hold ~4 grains more than a .22-06, if ya necked one down. Gonna be a badmuthafucka!!!
QL is predicting charges in the 61-65gr range, depending on powder.
[ September 28, 2017, 09:50 AM: Message edited by: knockemdown ]
Posts: 2202 | From: behind fascist lines | Registered: Mar 2010
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Lone Howl
Free Trial Platinum Member & part-time language police
Member # 29
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posted September 28, 2017 09:56 AM
Will this be any better than my .22 magnum on coyoties?
Mark
Just funnin. Awsome work Fred.
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When tyranny becomes law, rebellion becomes duty.
Posts: 2083 | From: Texas | Registered: Jan 2003
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knockemdown
Our staff photo editing Guru, par excellence
Member # 3588
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posted November 18, 2017 04:48 AM
Update:
Barrel is @ smith
Reamer is en-route...
Better kill some deer pretty quick, so we can get this beast rollin'!
Posts: 2202 | From: behind fascist lines | Registered: Mar 2010
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Displayed Name
Knows what it's all about
Member # 4669
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posted December 03, 2017 12:18 PM
Wow gotta love a project. Was that a couple 223wssm’s, a couple 22-243ai’s leading up to this. I love it id be at it too if I could.
Posts: 26 | From: Prince Edward Island | Registered: Feb 2016
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