If your .22 magnum is zeroed in at 30 yards? - The Firearms Forum

jstgsn · 06-06-2012, 08:50 PM

Can any one estimate where it will be at 40 to 70 yards? Shooting a Marlin .22 mag rifle, Hornady .22 magnum 30 grain bullet, temp is 70 degrees, rifle is micro grooved, and at 30 yards it is dead on, ie .25 inch circle. Only looking for a guesstimate of what it will do at 50 yards, out to 70 yards. Using a 9 power scope. I'm not looking for exacts, just a "it should be" estimate.
Next weekend I should be able to go to the range, but tomorrow my farmer friend has complained of a wood chuck problem and I was hoping to get out there. Figure I have a good spot to hide between 40 - 70 yards from where the varmit is coming out, and tonight was able to zero in at 30 yards.
thanks
fred

3/2 STA SS · 06-06-2012, 08:52 PM

I believe it will be higher as the bullet rises. Just place the cross hairs a bit lower then you don't have to mess around trying to chase the round. Good hunting!!

Sandman · 06-08-2012, 08:36 AM

Mine is zeroed at 25 yds, about 1/2" high at 50yds, and about 1-1/2 high at 100 yds. shooting a 40 gr. CCI.

jack404 · 06-08-2012, 08:46 AM

on CCI .22 wmr its a fraction shy of a inch .989 at 75 Yards

dunno for hornandy , i dont buy it ..

carver · 06-08-2012, 08:54 AM

.22 WMR (40 HP at 1910fps) Ballistic Coefficient .100, @ 100yds +0.5" @ 200yds -19.0" Mid-Range Trajectory1.5"@65yds. Maximum Point Blank Range 123yds.

Curlyjoe_99 · 06-08-2012, 12:45 PM

ok did my let fly for you. some numbers are approximate

.22 WMR (30gr at 1910fps- check your box data) Ballistic Coefficient .100, zeroed at 30yds, sights above bore at 1" (it matters- if yours defferent you will be high or low) 70 deg at sea level.

@ 50yds, 0.10 rise
@ 60yds, 0.05 drop
@ 70yds, 0.39 drop
@ 80yds, 0.86 drop
@ 90yds, 1.50 drop
@ 100yds, 2.34 drop

straight shooting to you

dang! just realized that i'm a day late- bygones

Hammerslagger · 06-08-2012, 03:09 PM

The answer to your question is mainly dependent upon you sighting system. That is to say do you have low mounted open iron sights that has the top of the front sight about 0.5" above the center of the bore; or do you have a big scope mounted on the rifle with an optical axis that is over 2.0" above the center-line of the bore.

For a real life example, a .22 LR target pistol equipped with a 1" tube diameter red-dot sight will typically have its optical axis about 1.45" above the bore center-line and shoot to the same point of impact between 50' and 50 yards with target ammo. The same pistol set up for a "6 O'clock Hold" in US Bullseye shooting using iron sights, will print 1.5" high at 50', 2.75" high at 25 yards (or 1.25" higher), and 4.0" high at 50 yards {or 2.5" & 1.25" higher than 50' and 25 yards, respectively}.

The foregoing probably does not help a lot other than to demonstrate that you need to actually check your rifle, sight system, and ammo at various ranges that you will shoot at. There are some tables for some arms, ammo , and sight axis distance above bore center-line published by some ammo manufacturers and the military. You might try searching the Internet.

06-06-2012, 08:50 PM	#1
jstgsn Advanced Senior Member Join Date: Nov 2009 Location: Milford, Delaware Contributor Posts: 1,277	If your .22 magnum is zeroed in at 30 yards? Can any one estimate where it will be at 40 to 70 yards? Shooting a Marlin .22 mag rifle, Hornady .22 magnum 30 grain bullet, temp is 70 degrees, rifle is micro grooved, and at 30 yards it is dead on, ie .25 inch circle. Only looking for a guesstimate of what it will do at 50 yards, out to 70 yards. Using a 9 power scope. I'm not looking for exacts, just a "it should be" estimate. Next weekend I should be able to go to the range, but tomorrow my farmer friend has complained of a wood chuck problem and I was hoping to get out there. Figure I have a good spot to hide between 40 - 70 yards from where the varmit is coming out, and tonight was able to zero in at 30 yards. thanks fred __________________ Don’t pick a fight with an old man. If he is too old to fight, he will just kill you. -->

06-06-2012, 08:52 PM	#2
3/2 STA SS Advanced Senior Member Join Date: Aug 2010 Location: Tampa Bay Area, FL Posts: 1,443	Re: If your .22 magnum is zeroed in at 30 yards? I believe it will be higher as the bullet rises. Just place the cross hairs a bit lower then you don't have to mess around trying to chase the round. Good hunting!! __________________ MORS DE CONTACTUS-DEATH ON CONTACT Last edited by 3/2 STA SS; 06-06-2012 at 08:54 PM..

06-08-2012, 08:36 AM	#3
Sandman Senior Member Join Date: Jun 2009 Location: Louisiana Posts: 552	Re: If your .22 magnum is zeroed in at 30 yards? Mine is zeroed at 25 yds, about 1/2" high at 50yds, and about 1-1/2 high at 100 yds. shooting a 40 gr. CCI.

06-08-2012, 08:46 AM	#4
jack404 Former Guest Join Date: Jan 2010 Location: Australia Contributor Posts: 17,622	Re: If your .22 magnum is zeroed in at 30 yards? on CCI .22 wmr its a fraction shy of a inch .989 at 75 Yards dunno for hornandy , i dont buy it ..

06-08-2012, 08:54 AM	#5
carver TFF Moderator/Host Join Date: Jul 2008 Location: DAV, Deep in the Pineywoods of East Texas, just west of Shreveport, LA Contributor Posts: 11,295	Re: If your .22 magnum is zeroed in at 30 yards? .22 WMR (40 HP at 1910fps) Ballistic Coefficient .100, @ 100yds +0.5" @ 200yds -19.0" Mid-Range Trajectory1.5"@65yds. Maximum Point Blank Range 123yds. __________________ Y'all be safe now, ya hear! Lamentations Chapter 5: 1. Remember, O LORD, what is come upon us: consider, and behold our reproach. 2. Our inheritance is turned to strangers, our houses to aliens. 3. We are orphans and fatherless, our mothers [are] as widows. 5. Our necks [are] under persecution: we labour, [and] have no rest. 16. The crown is fallen [from] our head: woe unto us, that we have sinned! 21. Turn thou us unto thee, O LORD, and we shall be turned; renew our days as of old.

06-08-2012, 12:45 PM	#6
Curlyjoe_99 V.I.P. Member Join Date: Jan 2012 Location: Texas Posts: 120	Re: If your .22 magnum is zeroed in at 30 yards? ok did my let fly for you. some numbers are approximate .22 WMR (30gr at 1910fps- check your box data) Ballistic Coefficient .100, zeroed at 30yds, sights above bore at 1" (it matters- if yours defferent you will be high or low) 70 deg at sea level. @ 50yds, 0.10 rise @ 60yds, 0.05 drop @ 70yds, 0.39 drop @ 80yds, 0.86 drop @ 90yds, 1.50 drop @ 100yds, 2.34 drop straight shooting to you dang! just realized that i'm a day late- bygones Last edited by Curlyjoe_99; 06-08-2012 at 12:48 PM.. Reason: day late

06-08-2012, 03:09 PM	#7
Hammerslagger Advanced Senior Member Join Date: Jul 2009 Posts: 1,099	Re: If your .22 magnum is zeroed in at 30 yards? The answer to your question is mainly dependent upon you sighting system. That is to say do you have low mounted open iron sights that has the top of the front sight about 0.5" above the center of the bore; or do you have a big scope mounted on the rifle with an optical axis that is over 2.0" above the center-line of the bore. For a real life example, a .22 LR target pistol equipped with a 1" tube diameter red-dot sight will typically have its optical axis about 1.45" above the bore center-line and shoot to the same point of impact between 50' and 50 yards with target ammo. The same pistol set up for a "6 O'clock Hold" in US Bullseye shooting using iron sights, will print 1.5" high at 50', 2.75" high at 25 yards (or 1.25" higher), and 4.0" high at 50 yards {or 2.5" & 1.25" higher than 50' and 25 yards, respectively}. The foregoing probably does not help a lot other than to demonstrate that you need to actually check your rifle, sight system, and ammo at various ranges that you will shoot at. There are some tables for some arms, ammo , and sight axis distance above bore center-line published by some ammo manufacturers and the military. You might try searching the Internet.