Am I the only one who finds humor in that every single thread about any PCC on any board has numerous complaints that a 9mm straight blowback has "too much recoil, can be a bit jarring to shoot, makes follow up strings getting back on target more difficult", yet you read on,
and then every other post is "Wish they made it in .40 S&W, .45 ACP, 5.7mm, 10mm, insert any non-9mm straight wall pistol cartridge here, etc."?
I had an Uzi carbine and if you watch the action in slow motion, that is one heavy bolt, it throws the sight picture way off with every shot. Not as important for an SMG/bullet hose but for a semi auto version, that is most people's issue with the Uzi, straight blowback with a heavy bolt. That's why the H&K MP5 took over the SMG mantle from the Uzi, delayed roller blowback, makes the gun shoot so much smoother and so much easier to stay on target.
So wouldn't logic dictate that increasing the PSI, size of projectile and powder burn volume on a straight blowback cartridge mechanism would only amplify the undesirable properties of straight blowback design, cheek slap, rougher, more prominent recoil? From an engineering and design standpoint, it would make a lot more sense to have to completely redesign the firearm design in question to utilize a roller delayed blowback or other type of action to mitigate these negative properties, also with the undesired effect of greater weight, cost, ammo cost, along with scarcer ammo availability compared to 9mm? All of these factors would make PCCs in these bigger calibers probably sell a far fewer units than the run of the mill straight blowback 9mm PCC for the manufacturer.
I know Hi Point has been selling the hell out the 10mm PCC they make so there is obviously some market demand for this but when one takes a $679 Ruger PC Carbine in 9mm, effectively has to redesign it to accomodate say, 10mm, does it make sense for Ruger to produce it? Does anyone in this thread have the 10mm Hi Point or has shot one? What is the recoil like? Not that it is punishing to your shoulder obviously but does it knock your sight picture way off each round? Henry, Ruger or Smith & Wesson would likely have to charge a little more for it if they just upsized the 9mm version, or they could have to charge a lot more for it if they changed the design to roller delayed blowback, beefier receiver, heavier weight, etc. If the PC Carbine is $679 msrp for the basic model in 9mm, would 10mm fans buy it in 10mm if it was $999 instead in 10mm? $899? Would they only buy it if it was the same $679? I don't really get shooting 10mm at .45 per round when you can shoot .223 out of an AR for the same cost per round?
To me, 9mm is the perfect PCC cartridge. The most popular round in the world, easy availability, low cost, better ballistics out of a 16" barrel than your pistol would ever have, cheap enough to plink a few hundred rounds in a session. Plinking 300 rounds of 10mm, if you don't reload, you are talking $135 just for ammo. Not plinking territory for me, but I'm not wealthy. I guess if your main concerns are hunting or HD, you don't need to shoot that many rounds but in my mind, there are much better hunting and HD guns than PCCs.