Adjusting sights from 25 to 50 yards. OR adjust hold?

Go down

Adjusting sights from 25 to 50 yards. OR adjust hold?

Post by Sheriff1962 on Sat Jul 28, 2018 10:07 pm

How many clicks up would I normally have to go from 25 to 50 yards? For example , I have a Les Baer PII 45 acp.  Its set up for six o'clock hold for 25 yards ( to shoot about 2.75 inches high at 25 yards) with Federal Gold Medal 185swc.

When I move to 50 yards AND will still want six o'clock hold ( 4 inches high on 50 yards target ) how many clicks up I would normally have to go ?

OR is it better to just use center hold at 50 yards? 

Any help is appreciated.

Sheriff1962

Posts : 127
Join date : 2018-07-04

Back to top Go down

Re: Adjusting sights from 25 to 50 yards. OR adjust hold?

Post by Jon Eulette on Sat Jul 28, 2018 10:15 pm

I still use 6 o’clock hold. I come up 4 clicks
Jon
Jon Eulette
Jon Eulette

Posts : 2325
Join date : 2013-04-15
Location : Southern Kalifornia

Back to top Go down

Re: Adjusting sights from 25 to 50 yards. OR adjust hold?

Post by Chris Miceli on Sat Jul 28, 2018 10:28 pm

Try 6 clicks
Chris Miceli
Chris Miceli

Posts : 2690
Join date : 2015-10-27
Location : Northern Virginia

Back to top Go down

Re: Adjusting sights from 25 to 50 yards. OR adjust hold?

Post by LenV on Sun Jul 29, 2018 12:43 am

Try zero clicks first. 3" high from point of aim at 25 is 6" at 50. Bullet might drop back in X. All depends on load.
LenV
LenV

Posts : 3379
Join date : 2014-01-25
Age : 69
Location : Oregon

Back to top Go down

Re: Adjusting sights from 25 to 50 yards. OR adjust hold?

Post by Sheriff1962 on Sun Jul 29, 2018 1:54 am

185 Federal Gold Medal

Sheriff1962

Posts : 127
Join date : 2018-07-04

Back to top Go down

Re: Adjusting sights from 25 to 50 yards. OR adjust hold?

Post by Dr.Don on Sun Jul 29, 2018 6:12 pm

You have a good answer above:  4-6 clicks.  I use 5.
Dr.Don
Dr.Don

Posts : 536
Join date : 2012-11-01
Location : Cedar Park, TX

Back to top Go down

Re: Adjusting sights from 25 to 50 yards. OR adjust hold?

Post by LenV on Mon Jul 30, 2018 8:31 pm

Back to my zero answer. I was just playing with my ballistic calculator. a 185 gr SWC with a bc of .114 and a muzzle velocity of 850 fps has some interesting numbers. Iron sights about 1/2" above the bore and sighted in at 75 yds. To match observed performance. Would print about 2.9" high at 25 yds and 3.2" at 50. Those numbers change a bunch as velocity goes up or down. I used to shoot hardball center hold and never changed my sights between 25 and 50. I didn't have this handy calculator back then but looking at it now I see those hardball rounds would have been about 1" high at 25. If you never change them you don't have to worry about where you left them.

Len

























[th]Range[/th][th]Velocity[/th][th]Impact[/th][th]Drop[/th][th]ToF[/th][th]Energy[/th][th]Drift[/th]
0850-0.5002970
258242.941.720.092790.67
508013.166.650.182641.36
75779014.970.282492.51
100758-6.7426.870.382364.1
LenV
LenV

Posts : 3379
Join date : 2014-01-25
Age : 69
Location : Oregon

Back to top Go down

Re: Adjusting sights from 25 to 50 yards. OR adjust hold?

Post by Sponsored content


Sponsored content


Back to top Go down

Back to top


 
Permissions in this forum:
You cannot reply to topics in this forum