Good .22LR muzzle velocities/bullet wts for 100yds

[pinwheels]

Posted this in another thread, and was accused (rightfully) of threadjacking, so trying again. I'm sure this has been covered here somewhere, but I couldnt find it.

I'm confused by the labeling on .22LR:
"Standard velocity", "High Velocity", "Extreme Velocity", "Subsonic", "Match", "Biathlon", . . ..
If just shooting paper at 50-100 yds with a .22LR rifle, which would likely be most accurate/consistent? Would there be much difference in bullet drop at 100 yds between "high" and "standard" velocity? 32gr vs. 40gr bullets?

I know there's a stability issue for supersonic rounds dropping to subsonic. For a .22LR rifle (say 22" barrel), which rounds would be supersonic based on nominal FPS muzzle velocity?

[nakoomba]

The most accurate rounds all seem to be in the subsonic range. Best bang for the buck in accuracy usually comes from ammo such as wolf or sk that can be had for under $50 for 500 rounds.

Some rifles like bulk ammo, I have a CZ 452 that loves higher velocity, 1280fps bulk ammo by federal or winchester. It really depends on your rifle but your best bet for good accuracy is to try good subsonic ammo.

All match grade rimfire ammo is subsonic even if the box doesn't say subsonic.

[nakoomba]

Would there be much difference in bullet drop at 100 yds between "high" and "standard" velocity? 32gr vs. 40gr bullets?

There is a substantial difference in bullet drops between high and standard.

at 100 yards a 1280 fps bullet drops around 3-4" compared to a match type subsonic that dops 5-7"

[pinwheels]

I thought I'd posted this, but I'm not seeing it.

Thanks nakoomba and again apologies for the threadjacking. I'm shooting a Marlin bolt action with 22 inch "microgroove" barrel. Would a nominal 1280 fps round actually reach that muzzle velocity in this gun? Is that supersonic?

And if supersonic rounds lose accuracy when dropping to subsonic, what's the point? Short range knockdown?

Thanks again.

[Jonathan Doe]

I never liked high velocity 22LR ammo. I just use match or subsonic rounds and it is good enough for me, and that gave me several medals. As long as you know how much it drops at a given distance, you won't have a proben hitting the bullseye. Just like shooting long range matches.

[nakoomba]

Accuracy depends greatly on the rifle, some rifles like the higher velocity stuff, and many semi autos wont cycle the lower velocity ammo. Plus higher velocity ammo packs more of a punch at a greater distance if you are doing some varmint hunting.

The bullet would probably reach 1280fps with the barrel on your Marlin and when you get over about 1100fps you are supersonic. Like I said your rifle may like certain ammo and shoot better with higher velocity rounds.

[pinwheels]

Thanks topgun7 and nakoomba. Guess I'll try to find a few boxes of both, get some sandbags, and see what happens at 100 yds. I zeroed the scope last weekend at 25 yds, but really couldn't get a steady mount, but put 7 rds into one hole about 1/2" by 3/4". Most of the variability was me trying to hold it steady, not the scope or rifle. Should have been a lot tighter, even though it's hardly a match grade barrel. May have to mount a sling and go prone to really find out. Back in the day, I could pretty consistently remove a 0.22" diameter X ring at 50' with iron sights in an Army ROTC rifle marksmanship class, admittedly using match rifles indoors. Couldn't quite believe they were giving me college credits for it.

Anyway, cheers, and thanks for the guidance!