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Old 01-06-2020, 02:59 PM
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I know I found some information on this now I cannot find it. Anyway i have at least 8 22 rifles to sight in. The indoor range has a 50 ft lane. I will be shooting Remington hp hv golden bullets. At 50 ft how high should i sight in to be close at 50-75 yards?
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Old 01-06-2020, 03:04 PM
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Old 01-06-2020, 04:11 PM
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When I shot small bore competition 50ft sight in matched 50 yrd sight in using match ammo.
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Old 01-06-2020, 05:05 PM
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You will be pretty close.
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Old 01-06-2020, 08:56 PM
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When I shot small bore competition 50ft sight in matched 50 yrd sight in using match ammo.
interesting


pipestone
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Old 01-07-2020, 02:32 PM
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interesting


pipestone
We shot what the NRA called Light Rifle (rule 3.3) at 50 ft and 50 yards four position using anschutz rifles. I used an Anschutz 1413 in four position shooting and when I shot prone competition I used the 1407 Anschutz. Back in the day we were told our 50 ft sight in was good for 50 yards and it was. Of course a sight correction if the conditions changes such as wind.

Today we have ballistics tables at our disposal to show almost precisely what a given bullet company's projectile will do at our fingertips. Nikon's Spoton Ballistics calculator table (*see below information) shows that a 50 ft zero is equal to +.41" zero at 50 yards. The A-17 NRA 50 ft targets (rule 4.2) is what we used and also the A-23/3, 50 Yard Target(Rule 4.6) . The ten ring of the A-23/3 target is .89". This trajectory rise of +.41" is within the .89" 10 ring size at 50 yards. This trajectory is also within my original statement of "When I shot small bore competition 50ft sight in matched 50 yrd sight in using match ammo." I suppose I should have been very specific and wrote that a 10 ring sight in at 50 ft would get me a 10 ring sight in at 50 yrds. Basically if the first zero is 50 ft the second zero is 50 yards with the match ammo we were using.

I hope this helps with your issue.

*using Eley target round nose 1085 fps, BC .149. with a zero at 16 yards (calculator won't allow 16.6 yards which is 50 ft). Scope over bore 1.5" and drag table G1.

For your reading pleasure.

From the NRA Rules book
http://navy.rotc.umich.edu/wp-conten...ifle-rules.pdf



50ft target A-17


50yrd target A23/3
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Old 01-07-2020, 02:46 PM
Gmww
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Quote:
Originally Posted by Xrperry View Post
I know I found some information on this now I cannot find it. Anyway i have at least 8 22 rifles to sight in. The indoor range has a 50 ft lane. I will be shooting Remington hp hv golden bullets. At 50 ft how high should i sight in to be close at 50-75 yards?
Here is a link where you can submit which calib. and company bullet your using to determine trajectory. There are a bunch of others out there but this one works for me as I use BDC reticles. You'll also need to plug in scope height over the bore, your elevation, etc. if you want precise trajectories.


http://spoton.nikonsportoptics.com/s...n.html#Index:4
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Old 01-07-2020, 03:14 PM
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Ascending vs. descending zero point

Quote:
Originally Posted by Xrperry View Post
I know I found some information on this now I cannot find it. Anyway i have at least 8 22 rifles to sight in. The indoor range has a 50 ft lane. I will be shooting Remington hp hv golden bullets. At 50 ft how high should i sight in to be close at 50-75 yards?
I have found with my CZ rifles and SV ammo that a 50-yard zero will strike a 17-yard target with approximately the same POI as at 50 yards.

What I must remember, however, is that the 17-yard hole is made by the FIRST zero point (bullet is still rising), and the 50-yard hole is made by the SECOND (descending) zero.

SO: Do not "zero" your rifle at 50 feet unless you are certain that you are using the ASCENDING zero. If you zero at 50 feet using the DESCENDING zero point, your POI at 50 yards will be quite low.
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