Standard or High Velocity?

[J_Roger]

So here's one for the ages. We all know that .22's are all very picky in what ammo they like, but is there an advantage to sub-sonic over super-sonic rounds or vice-versa? I always thought that the faster the round the better, but I see that alot of you on here prefer the slower rounds, why is that?

 

[gszeto99]

Re: Standard or High Velocity?

1) Target grade ammo tend to be subsonic ammo

2) Subsonic ammo makes a suppressor more effective

3) Subsonic ammo does not go through the trans-sonic stage as it travels (trans-sonic stage of a bullet's flight tends to decrease the accuracy of the bullet)

 

[J_Roger]

Re: Standard or High Velocity?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: gszeto99</div><div class="ubbcode-body">1) Target grade ammo tend to be subsonic ammo

2) Subsonic ammo makes a suppressor more effective

3) Subsonic ammo does not go through the trans-sonic stage as it travels (trans-sonic stage of a bullet's flight tends to decrease the accuracy of the bullet) </div></div>I see the advantagesof the subs, but will they make it out to the limits of .22 (say 400 yds.)? See I really use my trainer to practice long range stuff so when I get my 1000 yard rig together, I will be comfortable with making the dope changes and what kind of math and other variables I will encounter, and thus I regularly push out past at least 200 yds.

 

[TOP PREDATOR]

Re: Standard or High Velocity?

you shouldn't have a problem getting out to 400 with them (sub sonic or match), you'll just have to compensate more with the optic or holdover.

the advantage of the high velocity is the flatter trajectory and the impact on game. but once it hits transonic and starts to destabilize, you will not have the consistancy factor, which is more or less defeating the velocity advantages of trajectory.

so subsonic / match ammo will pay off more for group size and consistancy, but you'll have to adjust a hell of alot more for the drop.

 

[VYD]

Re: Standard or High Velocity?

Sometimes MORE is BETTER. But sometimes LESS is MORE. By going LESS with a .22 LR rimfire, you get MORE. All Match grade .22LR ammo is subsonic and for a great reason - accuracy. A lower power hit is better than a high power miss, in my book. Take that trans-sonic stage out of equation with a rimfire, you don't need it! If you want/need a rimfire speed, perhaps .17hmr is the one for you...
Cheers.

 

[frog5215]

Re: Standard or High Velocity?

Even stingers go subsonic by 88yd.

Many HV and hypervelocity rounds have 32-38gr bullets with an even lower BC than standard 40gr ammo, so they slow down faster and drift more even if subsonic.

Wind drift with HV .22s is greater than with SV.

 

[DRAM40A1]

Re: Standard or High Velocity?

I recently started shooting 200 with a Finnfire and came across a couple bricks of Eley high velocity 40 grn solids. 17.5 MOA from 50 yard zero to 200. It shoots around .75 MOA at 100. I need to go down and measure the 200 yard groups but it beat the Wolf Match by a good margin.

 

[Greg Langelius *]

Re: Standard or High Velocity?

If you're shooting shorter than the transsonic transition distance, I believe it really doesn't affect accuracy. It's when you get to comparing bullets that pass through transsonic and bullets that don't that you start to see accuracy differences..., usually...

To my mind, the subsonic/standard velocity ammo is what I prefer for paper, and the high/hyper velocity ammo is what I prefer for critters.

Also, once the round gets more than about 18"-20" down the barrel, it's supposedly slowing down, so maybe barrels longer than 20" coud have a 'taming' effect on faster loads.

Greg

 

[emmagee]

Re: Standard or High Velocity?

As you indicated, you need to find what ammo your rifle likes, but as a general rule of thumb, standard velocity ammo will be ,ore accurate than HV.

 

[clmayfield]

Re: Standard or High Velocity?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Greg Langelius *</div><div class="ubbcode-body">
To my mind, the subsonic/standard velocity ammo is what I prefer for paper, and the high/hyper velocity ammo is what I prefer for critters.
</div></div>

That's a pretty good breakdown. The match ammo will be more accurate and match ammo is almost always subsonic. High Velocity will have more knock-down power for varmints.

 

[Tbag]

Re: Standard or High Velocity?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: DFOOSKING</div><div class="ubbcode-body"> I put a sub in a coons eye at 30ft looking right at me...barely did the job but they are tough. </div></div>

Sorry, but b.s. on this, at 30ft your knocking the shit out of a racoon. I've shot over 100 in the past year and half using subs at 25 to 35 yards, mostly head shots and quite a few body shots. If your slightly off on a body shot they will run, if well placed they are done. The eye/head shots DRT. They may spin on the ground for a moment but they aren't going any where.

 

[hrt4me]

Re: Standard or High Velocity?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: VYD</div><div class="ubbcode-body">Sometimes MORE is BETTER. But sometimes LESS is MORE. By going LESS with a .22 LR rimfire, you get MORE. All Match grade .22LR ammo is subsonic and for a great reason - accuracy. A lower power hit is better than a high power miss, in my book. Take that trans-sonic stage out of equation with a rimfire, you don't need it!</div></div>

Good info