Author Topic: How much does a 22lr bullet drop at 100 yards ?  (Read 3228 times)

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OneShotWonder

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How much does a 22lr bullet drop at 100 yards ?
« on: January 05, 2009, 08:19:04 PM »
I forgot.
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prodgi

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Re: How much does a 22lr bullet drop at 100 yards ?
« Reply #1 on: January 05, 2009, 10:33:05 PM »
None if its sighted at 100 yards. 8)
Actually it is going to veri a lot. It depends on barrel length, the action (semi auto or bolt), the yardage it's zeroed at, and also which of the many bullet choices you pick.

Nick_Fury

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Re: How much does a 22lr bullet drop at 100 yards ?
« Reply #2 on: January 05, 2009, 11:18:37 PM »

Well, according to my box of Federal Bulk pack, a 36 gr copper plated HP round with a muzzle velocity of 1,260 fps will drop 5.6" at 100 yards.

Of course, as prodgi stated, there are many many other variables, so the true answer would most likely be "that depends".
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Frisco Pete

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Re: How much does a 22lr bullet drop at 100 yards ?
« Reply #3 on: January 06, 2009, 01:20:26 AM »
I have a ballistic program - several are available for your computer - and input for accurate trajectory (which is more than pure drop, and more useful) needs your particular ammo type, which varies the trajectory by velocity (chronographed from your gun is best, but factory dope gets you close), nose shape (ballistic coefficient) etc.  Altitude and ambient temperature, and even humidity also make a difference.  Other input factors are what yardage the gun is zeroed at, and how high above the bore the sights are (a difference at closer ranges).

So you see that there can be a lot of variables in any answer to your question and any pat, quick answer should be taken with a grain of salt.


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Lead Slinger

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Re: How much does a 22lr bullet drop at 100 yards ?
« Reply #4 on: January 06, 2009, 09:11:18 PM »
I know my 22 mag sighted at 50 drops 3 inches at 100.  My ruger 10/22 sighted at 25 drops around an inch at 50.  But type of ammo can affect this greatly.
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docbuckhead

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Re: How much does a 22lr bullet drop at 100 yards ?
« Reply #5 on: January 06, 2009, 10:45:37 PM »
Jack O'Connor, in The Complete Book of Rifles and Shotguns , stated that a normal velocity (about1,080fps at the muzzle) 40 gr. lead .22lr, fired parallel to the ground from a rifle (zeroed at zero yards), will drop around 17 inches at 100 yards.

High or Hypervelocity (CCI Stinger/Rem Yellow Jacket), would, due primarily to increased velocity, drop less, as little as 12 inches.

Interestingly, at 100 yards, for many rounds/calibers....initial MV that is the same will set the drop at 100 yards to near the same amount.

Case in point, a 36 grain .22lr HP at 1250 fps MV will drop 14.75 inches at 100 yards. A 9mm 125 grain HP at the same MV will drop over 13.90 inches. Even a .429 (44 Magnum) at that velocity, with a 300 grain slug, and a BC that is .204, compared to only .090 for the .22lr, will drop over 13 inches at 100 yards.

Beyond that mark, however, the ballistic coefficient of the projectile takes on more significance.

« Last Edit: January 07, 2009, 02:17:32 AM by docbuckhead »

big 54r

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Re: How much does a 22lr bullet drop at 100 yards ?
« Reply #6 on: January 07, 2009, 10:09:26 PM »
at a 12 or 13 inch 100 yd drop a 12 o'clock hold should sight you in fairly good and put you on paper X.

I'm kinda curious if your sight system would allow such though.some oem sights are crap and don't allow alot of adjustment.

what rifle and type are you shooting?

My marlin m60 shoots alot more accurate at distance (longer barrel) than my ruger 10-22 (shorter barrel). They are both good to go at 75 yds., which is as far as I need them...for know! 8)