Here's a question. If Aguila can make a 60-grain load that shoots at 950fps, can't someone make a hot 50-grain round that shoots at 1100-1200 and possibly stabilizes out of our barrels? I mean, 60 grain = 950fps (limited by powder capacity, so probably capable of 1000+), 40 grain = 1500fps (aguila interceptor), that must mean 50 grain at 1200+ is doable, no? I know that my math/logic might be way off, but I would be very interested in a 50gr load, especially a HP one. The penetration would be impressive, and velocity retention over distance equally so.

Just for an example, a 50gr bullet at 1250fps would equal 173 ft-lbs of energy, and 187 at 1300fps.

The subsonic 45gr rounds stabilize fine. So would another 5gr make a big difference?

How hard would it be to take some of these subsonic 45 grainers, pull the bullet, add in some extra powder and test them out in a bolt-action? Is there any way to get a hold of a device that measures chamber pressure to not exceed 24,000 psi?

whats the point....just buy a .22 mag rifle

the 1522 is a plinker/training rifle

thats simular compared to the .38 and the .357 cases

keith

I suspect that it is an accuracy thing.

The speed of sound is 1116 fps. What you propose is a bullet that would exit various barrels on both sides of the sound barrier because of normal variance, giving poor accuracy. Some bullets would be buffeted when they went through the sound barrier while others would start below the barrier and experience no buffeting.

This is the reason match ammo normally has a velocity around 1100 fps. None of them ever break the sound barrier.

The point is that a 60-grain round exists. So why not a 50? Why should I spend hundreds or dollars on a new platform when the one I have could be very versatile? I'm interested in pushing this platform as far as technologically possible...am I the only one? And it's not just a plinker, it's a hunting rifle too. A supersonic 50 grainer would be very beneficial.

Nope, you are not the only one. Folks are always trying to make the 15-22 into something it isn't. Some of that is good... some silly.

I am no expert but from what I understand, you have to match bullet weight with barrel twist. Sure the round will fire, but if the bullet is not properly matched to the barrel, you lose accuracy... which is critical if you want to hunt.

The proper way to make one gun more versatile, is to have a quick barrel change feature. My CZ 455 easily switches between .17 HMR, .22lr & .22 mag. So if I want to shoot a hot, light bullet, I can go to .17 HMR. If I want more oomph, like you, then simply switch to 22 mag.

__________________
FIDELITAS ET FORTITUDO

if no one makes a 50 grain bullet (projectile) then the bullet

makers must think there is no point for it either

keith

If that line of logic held any water, we'd never see anything new. Ever.

__________________
M&P40c/15-22/SD9VE/Mossy500

I disagree. Sometimes manufacturers have to use basic logic to determine if something is feasible. Kinda like turning a polymer 15-22 into an all aluminum gun... or turning a 22lr into a 22 mag. To me, if one wants to shoot a 22 mag, then go buy one. That gun will be designed to shoot such a bullet.

__________________
FIDELITAS ET FORTITUDO

The .22lr has been around for a while. 50gr bullets have existed for 22Mag for some time. Placing the 50gr bullet into a .22lr casing is simple, and doing tests on powder a matter of an afternoon's worth of time (for a manufacturer). I think what is being said is that if it was going to work for .22lr to have 50gr rounds, it would have been done by now.

__________________
686/M&P9 Pro/M&P15X/M&P15-22

Yes, sometimes they do, but it still doesn't prove the line of logic he was using.

__________________
M&P40c/15-22/SD9VE/Mossy500

look at it this way then
A bullet is a projectile propelled by a firearm, sling, or air gun and the idea of the bullet came first, followed by the design of the gun to fire the bullet!
so we have the .22 rifle and this guy seems to wan't to design
a bullet round it.......but we already have that in the .22 magnum,so there is no point

keith

I well understand that point. You missed mine though, as I'm not arguing for or against a new round.

__________________
M&P40c/15-22/SD9VE/Mossy500

The Aguila 60gr is designed for suppressed critter thumping. They keep the velocity down to ensure it does not go supersonic, and use the heaviest (longest) bullet possible for the most energy that will stabilize in a 1-16 barrel (and some won't). The Aguila uses a .22 short case. What case are you suggesting for this 50gr bullet? See below 60gr vs 40gr.

In your example, you're talking about supersonic velocities so my guess is that ammo manufactures find it easier to just pump up the velocity for more energy if keeping the bullet subsonic isn't a factor. Aguilla 60gr at 950fps has 120Ft lbs of energy. CCI Velocitor 40gr at 1435fps has 180ft lbs of energy.

Attached Images

Screen Shot 2014-02-18 at 6.00.50 PM.jpg (19.9 KB, 17 views)

Well, it's not like it's that hard to make a custom case with length in between a 22 short and 22 lr to fit a 50-grain round on. Or just use the short case. CCI made a whole new case for the Stinger. Now, I know it's too long to chamber in the match chambers, but a shorter than normal would probably be ok.

That logic didn't stop Aguila from designing a hyper velocity 30-gr LR round, when 22 magnums already had that. And it works great for target shooting and blowing up cans, and you don't need to buy a whole new rifle to use it... CCI designed a hyper-velocity 40 grainer even though you could already get that in a 22 mag... Since when is more variety and versatility a bad thing? I don't want to buy several .22 rifles just to shoot several different weight rounds...