Semi-Auto .22WMRs

[22-rimfire]

I would look at the CZ 512 in 22 Mag if you want a semi-auto. It is on my list of guns to take a look at and probably buy.

 

[helotaxi]

I suspect that Volquartsen charges enough that they can afford to test and fine tune each individual rifle to make sure that the spring strength is just right.

Not the recoil spring that they messed with. They actually took the Magnum Research design and perfected it. Their rifle uses a spring piston gas buffer to level out the pressure curve. The gas bleed port pressurizes a chamber with a spring loaded gas piston in it. The spring in that chamber combined with the mass of the piston equalizes the pressure curve and effectively delays the bolt coming out of battery. The result is a safe and reliable action for the .17HMR. The .22WMR has similar problems and Volquartsen makes the same rifle so chambered.

Volquartsen charges what they do because they make probably the highest precision small bore, semi-auto rifles on the planet and people will pay it.

 

[VA27]

The Brno 611 is a good one, though extra mags are a little pricey. The last model (611A) is a little hit or miss, but there are good ones out there.

 

[KC.45]

With regards to high capacity magazines, I know hk made them for their model 300 in, I believe, 15 round capacity. They will make a good size dent in your wallet though (for the mags and gun).

 

[natman]

Not the recoil spring that they messed with. They actually took the Magnum Research design and perfected it. Their rifle uses a spring piston gas buffer to level out the pressure curve. The gas bleed port pressurizes a chamber with a spring loaded gas piston in it. The spring in that chamber combined with the mass of the piston equalizes the pressure curve and effectively delays the bolt coming out of battery. The result is a safe and reliable action for the .17HMR. The .22WMR has similar problems and Volquartsen makes the same rifle so chambered.

Interesting. Do you have a picture or drawing illustrating this mechanism?

 

[barnbwt]

Baikal supposedly makes their MP161K in 22WMR and 17HMR. At least, they're reputed to exist . I suspect they are simple blowback, though . At least you can buy new mags for their 22LR model, now

TCB

 

[helotaxi]

Interesting. Do you have a picture or drawing illustrating this mechanism?

No, but it was discussed in a gun rag a few years back when they first came out and the magazine was reviewing one.