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 Post subject: 22 rim fire trajectory
PostPosted: Mon Jun 22, 2020 8:57 am 
Hawkeye

Joined: Tue Dec 25, 2007 8:11 pm
Posts: 8163
Location: missouri
FWIW comparison:
These all hit within a similar POA/POI @ 25 yards and all stayed on a 4" swinger @ 50 yards w/o holdover. The 100 yard POI of each ammo is listed below. Velocities are what's advertised not recorded. The Velociter made a significantly more distinct "whack" on the backstop.

Aguila subsonic 40 grain HP @ 1050 fps: 9" below POA
Federal HVHP 36 grain @ 1250 fps: 6" below POA
CCI Velociter HP 40 grain@ 1435 fps: 3" below POA

The Velociter would make a solid hit on a coyote/groundhog/raccoon sized varmint using a "backline hold".

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PostPosted: Mon Jun 22, 2020 11:24 pm 
Single-Sixer

Joined: Fri May 06, 2016 8:39 am
Posts: 349
When I shot NRA Hunter small bore silhouette . I used a 10" Contender and Remington Golden bullets. I know cheap ammo but I found a lot the Contender would shoot into 2" at 100 meters. I did not change my sight I changed my hold and sighted POA @25 yards. At 50 meters the gun shot 3/4" high , at 75 meters the gun shot 1" low and at 100 meters the gun shot 4" low .
A 25 yard sight in will take care of most 22lr shooting. Yes the Velocitors have more punch with slightly heavier bullet and high velocity to boot.


Last edited by JStacy on Tue Jun 23, 2020 3:55 pm, edited 1 time in total.

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PostPosted: Tue Jun 23, 2020 8:44 am 
Hawkeye
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A while back I spent a LOT of time and ammo experimenting with a variety of .22 rifles and loads. I came up with a rough rule of thumb:

If zeroed for 50 yards, drop at 100 will be 6-7 inches.

If zeroed at 100, rise at 50 will be 3-3.5 inches.

Of course these aren't exact, but are close enough to get you in the ballpark from where you can make fine corrections.

Either a 50 or 100 yard zero will print fairly close to point of aim at 25--within an inch. One of the biggest variables in how close is how high your scope is mounted.

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PostPosted: Fri Jun 26, 2020 3:00 pm 
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PostPosted: Sat Jun 27, 2020 5:50 am 
Hawkeye

Joined: Tue Dec 25, 2007 8:11 pm
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Location: missouri
Looks like those numbers come pretty close to what I found.
I would also note that sub-sonic ammo doesn't gain much(maybe nothing at all) when fired from rifle length barrels. The 10.5" Charger barrel may be the best compromise between a 4" pistol and 16" rifle since I found it reduced the 100 yard drop significantly vs a 4" while there's little change vs a 16" barrel.

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