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Elevation adjustments
Posted: Wed Sep 12, 2018 4:00 pm
by scott/r
Is it possible for someone to work out an elevation adjustment for a 22lr @ 1085fps from 25m zero to 300m, please. I don't have a ballistic app to do it myself.
It'll much appreciated if someone can help us out.
Scott.
Re: Elevation adjustments
Posted: Wed Sep 12, 2018 4:13 pm
by John23
About 55-58moa
I use elly match at 1066 FPS and it was a 58moa shot to 300m with a 50m zero
I set up a target at 200m to confirm my fly shooting zero and adjusted speed and bc into my calculator .
Shooting a steel plate about 12x12” it was easy to get blown off .
Very little noise to know you hit and takes weeks for the noise to get back to you from the time of fire
Re: Elevation adjustments
Posted: Wed Sep 12, 2018 4:21 pm
by John23
If you can set up with a dusty back drop in the sun you will save a few bullets .
My target is in the shade and with green and if you miss you have zero idea where it lande
About 490cm elivation
1.15 sec flight time
10kmh wind at 3-9 will give 35cm of error
Re: Elevation adjustments
Posted: Wed Sep 12, 2018 5:09 pm
by UL1700
Berger claim 53 minutes but I had to guess bullet weight and Ballistic Coefficient (I used 38 grains and a G1 of 0.110) anyway fun to play with if you don't know of it already and comforting to have access to at the range for a beginner like me...
http://www.bergerbullets.com/ballistics/
Re: Elevation adjustments
Posted: Wed Sep 12, 2018 5:19 pm
by scott/r
Thanks guys, it should be pretty cool having a go at this. We're going to have a shoot with the 300 f class paper targets.
Scott.
Re: Elevation adjustments
Posted: Wed Sep 12, 2018 5:35 pm
by sungazer
JBM is able to do it they have quite a few 22LR cartridges in the libary. I have used it even if I have to change a BC it works very well. I print out a drop chart in 10 yrd intervals.
What is the bullet construction solid HP and weight grn?
ScreenHunter_8.jpg
Re: Elevation adjustments
Posted: Wed Sep 12, 2018 5:44 pm
by John23
Getting enough adjustment will be your biggest challenge .
I use sports match hight adjustable (about $80 on eBay from the uk)
They will give you up to 50 moa dependant on how you set them up