Rimfire at 500y. Trained all day chasing the wind with my 22.

[TresMon]

Wind training all day today.
Custom 22LR based off a CZ 452.
500 Lazered yards. Lapua Center-X , subsonic match ammo.
10 shots for 7 hits, this string. (shot # 7 not marked. It's just below the "L" in the photo.)
Man sized shiloutte. (however you spell it.)
102 MOA elevation. (44.5 ft./ 13.6 M) 6 MOA for wind. (2.6' / .8 M ) [Average condition, but variable and gusty.]

1.85 second flight time.38 ft.lb. on target.

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For reference: 102 MOA of elevation would zero my 7mm extreme long range rifle @ 2250 yards.

 

[woogie_man]

Nice shooting!!

Was able to get my 22 out to 350 a few days ago, and now I want to go further. May have the room to get out to 450-475, so may have to give it a go.

What equipment are you using to get that far out?

 

[TresMon]

Nice shooting!!

Was able to get my 22 out to 350 a few days ago, and now I want to go further. May have the room to get out to 450-475, so may have to give it a go.

What equipment are you using to get that far out?

Go for it bro!

Manners Stock
Cz 452 action with 3rd action screw added. Bolt shimmed to squeeze rim for a bit more rim preload.
DIP bottom metal.
BenchMark 26", 2 groove, choked bore, reverse tapered barrel. Winchester '52 chamber. Bostrum Gunsmithing Tuner/Brake.
Trigger job, 20 oz.
DIP 20 moa scope base. Burris Zee rings, with max offset inserts for more MOA.
Vortex PST, FFP, MOA scope.
Busnell red dot, 45 deg. mounted. (for close range squirrel hunting ; ] )
Sinclair Tactical bipod
Lapua Center-X ammo

 

[Wheedle]

Might be a dumb question, but what was the reasoning behind using sub-sonic ammo?

 

[Hoser]

So the bullets don't get their asses kicked coming back through the sound barrier.

 

[TresMon]

Might be a dumb question, but what was the reasoning behind using sub-sonic ammo?

Great question. It's way more accurate, and FAR more consistent. You see a lead Rimfire bullet is shaped more like a pistol bullet rather than a rifle bullet. And this shape does not do well in the *transonic region at all. So if the bullet starts sub sonic, it never has to deal with the destabilizing effect of going transonic.

*Transonic means an object ("missile") is neither moving at super, nor subsonic velocity. It's in-between.
A super sonic bullet has the (primary) shockwave at the meplat. (tip of bullet.) As the bullet enters, goes through and drops into the subsonic region, the primary shock wave moves rearward on the bullet and eventually disappears. This moving of the shockwave down the bullet works hard to destabilize the bullets balanced, spiral flight. Nearly all Spitzer ("pointed") rifle bullets do fine in the transonic region. Most pistol bullets do not. Worse case scenario, the transonic region causes a bullet to tumble- flip end over end. And a tumbling bullet has no predictability regarding path.

See pic:

 

[Wheedle]

That's where I was going in my thoughts, to eliminate going transonic. I thought most .22 was barely supersonic to begin with. We always used subsonic when I was shooting 25m rimfire waaay back in high school.

 

[TresMon]

That's where I was going in my thoughts, to eliminate going transonic. I thought most .22 was barely supersonic to begin with. We always used subsonic when I was shooting 25m rimfire waaay back in high school.

Yep... "high velocity" long rifle ammo hits the transonic region really quickly/not far down range.

 

[45cal4life]

1.85 seconds of flight time, nice!!! I thought .6-ish going out to 200 yards seemed like a long time

 

[padom]

I've recently started shooting 22lr at longer distances as well. Built a CZ 455 for it. I can bang steel consistently at 200, 300 and 400. Im using Federal Gold Medal Match 22lr ammo. I am 100% maxed out at 400yds. 21.5mils. I have the Area419 30moa base on my CZ and a Vortex PST Gen1 6-24 maxed out and then holding 5mils down on the reticle to get hits at 400.

Waiting on my Athlon Ares ETR to arrive so I can try going to 500. Ares has 31mils of elevation adjustment vs 19mils on the Gen1 PST.

 

[TresMon]

I've recently started shooting 22lr at longer distances as well. Built a CZ 455 for it. I can bang steel consistently at 200, 300 and 400. Im using Federal Gold Medal Match 22lr ammo. I am 100% maxed out at 400yds. 21.5mils. I have the Area419 30moa base on my CZ and a Vortex PST Gen1 6-24 maxed out and then holding 5mils down on the reticle to get hits at 400.

Waiting on my Athlon Ares ETR to arrive so I can try going to 500. Ares has 31mils of elevation adjustment vs 19mils on the Gen1 PST.

Get the Burris See rings with offset inserts. The inserts give you more free MOA.

 

[TresMon]

That was supposed to say "zee" rings. Stupid phone.

 

[RTH1800]

Banging steel... at 400 yards you are pinging steel at best.

 

[padom]

Get the Burris See rings with offset inserts. The inserts give you more free MOA.

I'll have plenty of elevation once my new Ares ETR shows up

 

[padom]

Banging steel... at 400 yards you are pinging steel at best.

Haha..yea seriously. Definitely not the easiest to hear but you can.

This is at 300yds

 

[TheGerman]

Haha..yea seriously. Definitely not the easiest to hear but you can.

This is at 300yds

This was at around 300y. They were in a pile infront of the 22LR steel gong/plate. I made a post about it the day I did it and also confirmed the extreme spread in the velocity of even high end match grade 22LR rounds are the main reason you don't get a hit at distance assuming the wind isn't pushing it off. Cardboard box behind the target confirmed that if it wasn't a hit, it made almost a perfect vertical string somewhere directly above the plate as if you were doing a tracking test.

 

[Ric O'shay]

I typically practice in the 50 to 100 yard range. Today I stuck a adhesive target on the dinner plate sized gong at 200 Yrds and had a go.
Gotta say it was fun, with the delay, faint ping and splatter on the target.
Was pretty easy to hit every time, but dialing in a group seems like a lot to ask at this point. I was just using up some spare Federal, Prime and Aguila so next time perhaps a upgrade in ammo and a paper target to dial in results.
Was fun to pull the trigger, and view the delayed hits through the scope. My range max. is 200, but I would love to play around with 400 to 500.

 

[TresMon]

Banging steel... at 400 yards you are pinging steel at best.

No actually the little bullet is moving so slow when it hits it sounds like somebody hit the steel with a claw hammer!