17 hm2
The 17 HM2 is one of the lesser known rounds for varmint hunting. In today's society, we have to have the biggest, best, fastest, or whatever. The 17 HMR is favored by many people, but a large portion of these same people have never had any experience with the .17.HM2.
The 17 HM2 is a very accurate and potent cartridge for the purpose intended. One criticism is the lack of availability of ammunition, but I have not found that to be a problem, as I buy a carton at a time. And the price of the ammo is half the cost of the HMR, being $6.95 instead of $16.95. It is effective out to 125-150 yards, and I have taken several coyotes, a few racoons, and lots of gophers with mine.
Almost any modern made, good quality rifle that was chambered for the .22 Long Rifle can be made to work with the .17 HM2, but I think if I were going to build a personal rifle for myself, it would be a bolt action rifle of medium or higher price. An adjustable trigger would be a must, and a medium weight barrel nice. While most of the older rifles such as Winchester 52 or 75 rifles, Remington 540, 541, or 581 rifles, Brno, Anschutz, Kimber and so on have a great value in original form, there are enough "Bubba-ed" rifles that an action and possibly a stock could be bought and used.
My personal choice would be a Remington 581 action, with a second action screw added, and the trigger either modified for weight of pull, overtravel and sear engagement or an aftermarket trigger installed, to give a fine crisp pull of less than 3 pounds for a hunting rifle.
While I love the HM2 for occasional use, it will never replace the .22 long rifle for gopher or varmint shooting, and we have to recognize that fact. However, if I were going to shoot Southern Ontario Woodchucks, where 15 shots a day might be a lot, the the .17 HM2 would be my choice for a Field or Walking Around Rifle.
.