|Cheaperthandirt lists 110 handguns chambered for .22LR|
"Experts" will give you a half dozen reasons why the .22LR is not a good choice for defensive carry. Readers would do well to remember that experts gave us the Edsel and Obamacare.
The second beef with rimfires involves the fact that very few rimfire firearms support the practice of "dry firing." Dry firing is one of the fastest ways to become familiar with your handgun. It is quiet. It is safe. It is cheap.
So...If I were Glock or S&W or Ruger or SIG or H&K, I would fiddle with the firing pin design to make MY offering in the marketplace THE go-to .22LR for defensive work.
While I am sure there are multiple ways to address the shortcomings of the conventional rimfire system, I propose using either a shouldered firing pin or a key-hole shaped firing pin to address the dry-firing issue.
Shouldered or key-hole shaped firing pins also would also go a long way towards solving the issue of light-strikes for the weapons designer. The designer cannot use a hard material for the rimfire firing pin least it split, shatter or chip. The designer is then constrained to use a softer spring to prevent premature mushrooming of the firing pin. Softer springs means less energy to overcome friction and light off the priming compound.
Springs are cheap. Designers don't specify soft springs because springs are expensive. The designer specifies soft springs because other parts of the system cannot withstand the higher energy.
The second issue, unreliable ignition, can be partially addressed by having double firing pins. This solution is highly effective when voids in the primer are local. It is not effective when the voids are large, continuous or completely missing.
The tide is changing. More women are seeing firearms as an empowerment issue. They are voting with their wallets. They are choosing .22LR handguns in large numbers. The firm that can offer the first concealable handgun that provides "Toyota Camry" reliability while running commodity-quality .22LR ammo stands to make a pile of money.
***Added later***An email came in asking how one might fabricate a keystone shaped firing pin. They could not imagine a production process (Lathe??) as it was not round.
|These are a few of the shapes that are possible with powdered metal technology.|
My first "guess" would be 0.35%-to-0.50% carbon, 30Rc-to-35Rc and a couple of percent voids so it could be impregnated with lube and corrosion inhibitor. But that is just a guess. Actual testing or vendor recommendations might change the final specifications by a bunch.