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5.3 pound Tromix 375 SOCOM bolt gun (pic) Login/Join
 
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I put this together over the weekend. It's a Howa 1500 Mini Action (.223 length), chambered in .375 SOCOM. It feeds from a single stack 4 round magazine, 20 inch barrel. Fires a 200gr bullet about 2500fps or a 235gr at about 2400.

The gun alone weighs in at 5.3 pounds. Loaded up with five rounds of ammo and the optic, it's 6.9 pounds.

If you're not familiar with the Howa action, they are very nice, smooth, and have a much better extractor design than either the Rem 700 or Savage.

Tony Rumore
Tromix

 
Posts: 135 | Location: Inola, OK | Registered: 08 July 2011Reply With Quote
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that's pretty cool!


opinions vary band of bubbas and STC hunting Club

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Posts: 40240 | Location: Conroe, TX | Registered: 01 June 2002Reply With Quote
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Cool round.
I like that platform as well.


577 BME 3"500 KILL ALL 358 GREMLIN 404-375

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Posts: 27620 | Location: Where tech companies are trying to control you and brainwash you. | Registered: 29 April 2005Reply With Quote
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Looks like a sweet 200 yard gun for most things.


Love shooting precision and long range. Big bores too!

Recent college grad, started a company called MK Machining where I'm developing a bullpup rifle chassis system.

 
Posts: 2598 | Location: Missouri | Registered: 29 March 2006Reply With Quote
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Be a good pig ventilator
 
Posts: 3785 | Location: B.C. Canada | Registered: 08 November 2005Reply With Quote
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That looks great! Sounds like an awesome woods rifle for deer and black bear.
 
Posts: 1457 | Location: New England | Registered: 22 February 2010Reply With Quote
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Tony, does using the round in a bolt action allow you to raise the pressure above the 35K or so used by the socom in ARs? Or does the large pistol primer used by the case limit pressure?


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Posts: 579 | Location: Texas | Registered: 07 January 2015Reply With Quote
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ive got a 458 socom o the same 1500 action.... but have feeding issues... im told the action started out as a .243 to get the right boltface, but the removeable magazine creates feeding issues... it's got legacy bottom "metal" and removable mag... what magazine are you using???


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Posts: 2848 | Location: dividing my time between san angelo and victoria texas.......... USA | Registered: 26 July 2006Reply With Quote
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Love it


As usual just my $.02
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Posts: 12881 | Location: Mexico, MO | Registered: 02 April 2001Reply With Quote
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Very nice one can kill all manners of critters with that.
 
Posts: 19847 | Location: wis | Registered: 21 April 2001Reply With Quote
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Tony, I didn't know you were here on AR! I have one of your old AR15's in 50AE. Fun!
 
Posts: 1981 | Location: South Dakota | Registered: 22 August 2004Reply With Quote
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Approved! Where do I sign!


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Posts: 1225 | Location: Gilbertsville, PA | Registered: 08 December 2005Reply With Quote
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Jimatcat,

If your gun started out as a .243 then you're using a short action, not the Mini action. The Mini is .223 length and is too short to handle a .243 case.

I hand-made that magazine from 16 gauge sheet stock.

Tony Rumore
Tromix

 
Posts: 135 | Location: Inola, OK | Registered: 08 July 2011Reply With Quote
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quote:
Originally posted by TonyRumore:

I hand-made that magazine from 16 gauge sheet stock.



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Posts: 3785 | Location: B.C. Canada | Registered: 08 November 2005Reply With Quote
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Sure wish you guys would start signing up. Need a list long enough for Tony to CNC the new mag box. coffee


As usual just my $.02
Paul K
 
Posts: 12881 | Location: Mexico, MO | Registered: 02 April 2001Reply With Quote
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Nice project! Can you post some details on what it took to do this? I haven't seen much info on these little actions. How did the bolt face work out with the extractor, etc? Is the barrel a standard thread?
 
Posts: 871 | Registered: 13 November 2008Reply With Quote
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Could an AR magazine be used with a custom bottom metal? That's the point of socom right?
 
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