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#1
10-04-2014, 02:47 AM
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17 tcm/17 9mm
did a sarch on the forum and nothing , why hasn't someone necked it down to 17, has to exceed the 17 vha velocities by a wide margin.
i have been away too long.
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I post here because it keeps the riffraff away. 'Life's Journey is not to arrive at the grave safely in a well preserved body, but rather to skid in sideways, totally worn out, shouting, Holy sh!t... What a Ride! 
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#2
10-04-2014, 03:23 AM
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I picked up some 22 TCM brass. Got it necked down to 17 but no barrel chambered yet. My plan is to run a 17 Fireball reamer in "short" and load the round. 6 to 8 grains of powder should get the job done.
 The 17 VHA is in the works also. As far as how fast it will go, won't know till I get it to go BANG!
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#3
10-04-2014, 03:41 AM
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how is the case capacity compared to the vha.
__________________
I post here because it keeps the riffraff away. 'Life's Journey is not to arrive at the grave safely in a well preserved body, but rather to skid in sideways, totally worn out, shouting, Holy sh!t... What a Ride!
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#4
10-04-2014, 04:16 AM
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I think the FB reamer is a little tight at the shoulder, I made a sizing die for a TCM to 20 Cal. by running my 17 FB reamer in short in a blank die, then reaming the neck to size it to 20. Larry
__________________
A gun is just like a parachute, if you really need one, nothing else will do.
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#5
10-04-2014, 10:20 AM
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Quote:
So the 17TCM should be in 17HH territory.
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#7
10-04-2014, 02:04 PM
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What I did was neck down the 22 TCM case to 17, then ran it up into a 17 Fireball die to make sure the shoulder hadn't spread out.
Next step will be to run a 17 caliber mandrel in the neck then the case into a "shortened" 17 Fireball die. If I form with the Fireball die, it should match the reamer. One step at a time.
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#8
10-04-2014, 02:14 PM
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pictures??????????????????????????????
__________________
I post here because it keeps the riffraff away. 'Life's Journey is not to arrive at the grave safely in a well preserved body, but rather to skid in sideways, totally worn out, shouting, Holy sh!t... What a Ride!
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#9
10-04-2014, 02:17 PM
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just going by this article http://www.gunblast.com/RockIsland-22TCM.htmi realize the 9mm is based off the .223
Quote:
__________________
I post here because it keeps the riffraff away. 'Life's Journey is not to arrive at the grave safely in a well preserved body, but rather to skid in sideways, totally worn out, shouting, Holy sh!t... What a Ride!
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#10
10-04-2014, 02:48 PM
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The availability of TCM brass has me all giddy inside. Don K. sent me a Boomer case and all I can say is that I am happy I didn't build the Shrew a few years back. A 22TCM case necked down to 17 caliber with a 40 degree neck appears to be as close to perfection as one can get. I can't wait!! I look forward to hearing everyone's progress reports on their projects as they go forward.
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Waska Last edited by Waskawood; 10-04-2014 at 03:02 PM.
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