March 21st, 2024

17 Mach 2 — 2050 FPS Rimfire More Affordable Than 17 HMR

17 mach 2 .17 hm2 17HMR volquartsen summit

The 17 Mach 2 (aka “17 HM2″) is making a come-back. We’re glad. This high-velocity round fits actions and magazines designed for the .22 LR, so it’s an easy barrel-swap upgrade for most rimfire bolt-guns (semi-autos are more complicated). The 17 Mach 2 cartridge doesn’t deliver the velocity of the 17 HMR, but it is still way faster than a .22 LR. Expect 2000-2100 fps with 17 Mach 2 compared to 1250 fps for “High-Velocity” .22 LR ammo. And, importantly, 17 Mach 2 ammo is much less expensive than 17 HMR. If you shop around, you can get 50 rounds of 17 Mach 2 for about $8.50. That’s 43% cheaper than a better-than-average* $14.99 price of 17 HMR — a significant savings at 17 cents/round vs. 30 cents/round!

17 Mach 2 Major Selling Points:

1. 60% more velocity than typical “High-Velocity” .22 LR ammo.
2. 40% less cost than average 17 HMR ammo.
3. 17 Mach 2 OAL is compatible with .22 LR receivers and magazines.

17 Mach 2 — Best High Velocity Rimfire Bang for the Buck?

If you are looking for a capable, squirrel-busting round or a fun plinking round, you should definitely consider the 17 Mach 2, especially since CCI has committed to production of the little cartridge. CCI recently rolled out its “Gen 2″ 17 Mach 2 VNT Ammo with polymer tip (see top of article).

Considering that 17 HMR ammo is typically $15 to $17 per box, the 17 Mach 2 is a good value by comparison. It is available from vendors for about $8.50 per 50ct box. That’s $0.17 per round. When you consider overall “bang for the buck”, for many shooters, it makes sense to use the 17 Mach 2 rather than a 17 HMR. You save money, barrel life is a little longer, and the 17 Mach 2 is still a much more potent cartridge than the .22 LR. Check out this comparison, and note how the 17 Mach 2 has a much flatter trajectory than the .22 LR. For varmint shooting, the 17 Mach 2 is clearly the better choice.

And you can easily adapt a .22 LR Rifle to shoot the 17 Mach 2 just by changing the barrel. The magazine and bolt operation should work as the cartridge length, cartridge body diameter, and rim size is the same as the .22 LR.

17 Mach 2 hm2 .22 LR comparison
Hornady’s 17 Mach 2 has a 2100 FPS muzzle velocity vs. 1255 FPS for “High-Velocity” .22 LR.

17 Mach 2 Rifle Reviews

Gun-makers have taken notice of the availability of 17 Mach 2 ammo, introducing new models chambered for this versatile little rimfire round. For a high-volume, small-species varminting, the 17 Mach 2 is much more effective than the .22 LR, and much less expensive than the larger 17 HMR.

New Savage A17 in 17 Mach 2

There are a number of reviews on new-generation 17 Mach 2 rifles. Recently reviewed the Savage A17 in 17 HM2. Editor Eric Mayer wrote: “This new addition to the A17 line comes at a time when the 17 Mach 2 round is experiencing a resurgence, with ammo now available from CCI and Hornady, including the lead-free NTX round from Hornady. This means … you don’t have to break the bank to buy a current, functioning, semi-auto 17 Mach 2 and you don’t have to … convert your 10/22.”

17 mach 2 .17 hm2 savage a17 17 HMR varmint rimfire summit

Eric shot four different types of 17 Mach 2 ammo, putting 1000+ rounds through the Savage. He was impressed: “I am very excited that Savage Arms has chambered their A17 rifle in the 17 Mach 2 / 17 HM2 round. After shooting the prototype, I can confidently say that this new A17 will become my go-to 17 Mach 2 rifle. This new rifle is a great option for varminters everywhere!”

Toggle Bolt Volquartsen Summit in 17 HM2

It’s rare for us to see a new rimfire that we’d really like to own, but the new Summit from Volquartsen fits the bill. This versatile rifle features a cool, straight-pull toggle bolt, similar to those on elite Biathlon rifles. You can see how this gun shoots in this informative 22 Plinkster video:

22 Plinkster Tests Volquartsen Summit Rifle in 17 Mach 2

The 17 Mach 2 (17 HM2) is making a comeback. Now leading manufacturers are offering this efficient little rimfire cartridge in some nice rifles. Both Anschutz and Volquartsen will offer new 17 Mach 2 rifles in 2019. The Volquartsen Summit features a lightweight, carbon fiber-wrapped barrel threaded 1/2-28 for brakes or suppressors. The Summit boasts a nice 1.75-lb trigger pull. The Summit’s CNC-machined receiver features a +20 MOA Rail. NOTE: The video shows a silhouette-style laminated wood stock. However, the Summit comes standard with a composite Magpul stock that actually works better for shooting from a bench.

17 mach 2 .17 hm2 volquartsen summit

*Note: The cheapest 17 HMR we found via nationwide search was $12.50/box, but MidwayUSA charges $19.99 for 50 rounds of most 17 HMR types. At most vendors you’ll pay $16-$18 per box for 17 HMR ammo.

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