Posted on 06/15/2019 3:11:28 PM PDT by PROCON
My grandad showed me a picture of a hyper velocity .22 rifle. A machinist attached this short tube (the length of a .22) mid barrel. The idea was to put a blank .22 in that tube and when the gun was fired the initial round would cause the blank to also fire as the bullet went past thereby increasing the velocity.
100% correct - even changing a single part of your firearm (a rifle stock, for instance) can affect the firearm's performance with different ammunition.
Semi-auto pistols are by far the most problematic - their barrels are so short that the chamber pressure can drop before the bolt has received enough of an impulse to push it all the way to the rear.
Even revolvers should be tested with different loads. My wife has a S&W .22 rimfire revolver (purchased new), from which some fired cases are almost impossible to eject. Changing to a different load (IIRC, she settled on Remington HPs) solved the problem...
“My grandad showed me a picture of a hyper velocity .22 rifle. A machinist attached this short tube (the length of a .22) mid barrel. The idea was to put a blank .22 in that tube and when the gun was fired the initial round would cause the blank to also fire as the bullet went past thereby increasing the velocity.” [SkyDancer, post 81]
This sequential-charge velocity-boost concept dates to WW2 at least. The Germans built artillery pieces using a 100m barrel with stub tubes branching at intervals a good portion of the length; each contained a supplemental charge, which was ignited after the projectile passed the junction in question. The hot gases emerging from stub each added to the total volume of gases behind the projectile, keeping up the pressure and increasing the muzzle velocity.
Experimental versions of the gun were installed on the French or Belgian coast, dug into the shore hills and aligned at the optimum elevation angle for sending a shell across the Channel to the British Isle. Can’t recall just now if they were used in action.
Thanks. I still haven’t tried the CCI Quiet .22 40 grain HPs, mostly because I put in a lifetime supply of these:
https://www.remington.com/ammunition/rimfire/cbee-22
a number of years ago to address the need for something that would feed from a 10-22 magazine when manually cycled. 33 grain truncated hollow point( their Yellow-Jacket bullet, I believe) cut at the tip to segment on impact
CCI is, to the best of my knowledge, the only company to ramp up production of the low-profit .22 round, and I’ll reward their investment when I can.
Aquila ammo is like the Mexican CCI, and I don’t mean that disparagingly. They make a wide variety of specialty ammo. I tried a lot of different ones for fun, and have many varieties in the collection.
“Even revolvers should be tested with different loads. My wife has a S&W .22 rimfire revolver (purchased new), from which some fired cases are almost impossible to eject. Changing to a different load (IIRC, she settled on Remington HPs) solved the problem...”
Seen this happen a few times. No pattern that we could detect (I worked for some years, in gun repair, for a small family-owned dealership).
A safety note: some 22 rimfire firearms made before the introduction of high velocity rounds should not be fired with high velocity ammunition. Most will only sustain some parts damage and reduced service, but some can fail catastrophically.
Colt’s First Series Woodsman pistol wasn’t built to handle the hi speed ammo at first; after the hi speed stuff came out, Colt’s offered upgrade kits, with a stiffer recoil spring and a mainspring housing made with different heat treatment. Ultimately, Colt’s added a retaining pin to the frame & housing in their Second Series redesign - it halted the tendency of the housing to unseat during recoil pinching the shooter’s hand.
Rimfire revolvers eventually were treated to a chamber modification, recessing the chamber to allow the rounds to seat the rims flush with the back of the cylinder. It was discovered that unsupported rims as seen in earlier cylinder designs tended to suffer case ruptures when hi speed ammunition was fired.
And, just for the hold-my-beer-and-watch-this-hell-of-it, there’s this:
https://m.youtube.com/watch?v=hcBFR3BDd0Q
If you don’t want to click on it, it’s just some folks putting .22 cal pellets in a rifle and propelling them with the kind of .22 blanks used in construction to drive nails. I don’t know if the Kalifornia law covers the purchase of either of those.
Ever hump around a ,50 cal ammo can full of .22 ammo? Anyone that can trudge across a desert with one of those in each hand might deserve citizenship on arrival. :)
Curiously, near the end of the .22 drought, Aguila was the first ammo to show up at a Bi-Mart and remain on the shelf for more than a day.
Some people have never used it, so the funny name makes them leery about trying it. Those that have used it will seek it out over the name brands. I’ve read that it is the most popular 22 cal LR ammo in Texas.
I like it. The last really good gun store we had in town stocked it twenty years ago. I asked the guy how quiet the Colobri was and he opened a box, chambered a round in one of the used .22s on the rack, and shot at a target they had set up in the back room.
The only way I can square that is that they assume if one fails a background check for ammo, then they have probable cause to believe that one has weapons which they are not legally allowed to possess.
It’s not looking good for the state regarding that lawsuit. Good thing.
When I renewed my FOID, it was page upon page of questions, many of which were repeats. Unless they have since streamlined the process, it was a huge pain.
I renewed mine last August I believe. The biggest pain was getting access to their stupidly designed website. Once I got in it took me 15 minutes or so to fill it out.
Maybe they’ve changed it since then. It is Illinois after all.
Good luck.
L
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