17 HM2 Ruger 10/22 Conversion Kits - 17 Mach 2 barrels and Heavy Bolt Handles Convert your Ruger 10/22 to 17HM2
17 HM2 Conversion for Ruger 10/22 Rifles
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ph. 320-834-3000, FAX 320-834-3002 , Orders Only Toll Free 1-800-950-9088 Read Customer Comments - Click Here!
  We are sorry to announce that our 17 HM2 Conversion Kits have been discontinued due to the lack of availability
of good quality ammunition. This article is presented for educational, informational, and historical purposes only. 

17 HM2 Conversion System for the Ruger 10/22

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Ruger 10/22 Converted to 17 HM217 Mach 2 Heavy Bolt Handle Assembly for Ruger 10/22
Above: Converted Ruger 10/22 and Close-up of Heavy Bolt Handle
  Our Special 17 HM2 Heavy Bolt Handle Assembly provides the bolt mass to properly time the Ruger 10/22 action to fire 17 Mach 2 ammo safely and reliably... And, our 17 HM2 Target barrels install just like any other 10/22 Target barrels! Is it Difficult?... NO! We have complete Photo Illustrated Instructions that guide you step by step through installation of the 17 HM2 Heavy Bolt Handle Assembly, 17 HM2 Target barrel,... even the rifle stock and scope mount!
17 Mach 2 Trajectory Chart

17 HM2 Barrel/ Bolt Handle Conversion Kits for Ruger 10/22

  We are sorry to announce that our 17 HM2 Conversion Kits have been discon- tinued due to the lack of availability of good quality ammunition. This article is presented for educational, informational, and historical purposes only. 

** Ruger 10/22 and 17HM2 Warnings **

  Here's How It Works: The 17 Hornady Mach 2 (HM2) is a 17 caliber version of the 22 LR rimfire cartridge. It shoots a heck of a lot faster and flatter, however (click Data at left). The blow-back semi-automatic Ruger 10/22 needs more bolt mass to time its fire, eject, and rechamber cycle to work right with this faster shooting 17 HM2 round... Merely installing a 17 HM2 barrel is not sufficient. Our 17 HM2 Heavy Bolt Handle Assembly adds the necessary mass... a simple, elegant solution.
  Barrel/Bolt Handle Kits: For obvious reasons, we don't sell 17 HM2 barrels without the 17 HM2 Heavy Bolt Handle Assembly... you need BOTH a 17 HM2 barrel AND our 17 HM2 Heavy Bolt Handle Assembly to do a proper conversion of the Ruger 10/22 from 22 LR to 17 HM2 ammo. 
  Our 17 HM2 Barrels are precision drilled, reamed, rifled, and chambered to match grade tolerances to insure the best accuracy! The .920" diameter barrels are heavy target profile in blue, stainless and stainless fluted. These are fatter barrels than standard 10/22 stocks will fit. We have reasonably priced, adult sized Synthetic Stocks, Laminated Thumbhole Stocks that will fit these barrels. The Factory Contour barrel fits the original Ruger factory stock. We also have Package Deals on Scope Mounts, Action Jobs, and even the brown or gray thumbhole stocks! 

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E. Arthur Brown Company, Inc, sales@eabco.com, 4088 County Road 40 NW, Garfield, MN 56332
ph. 320-834-3000, FAX 320-834-3002 , Orders Only Toll Free 1-800-950-9088