Page 1 of 4
Parallax focusing/range finding accuracy
Posted: Fri Feb 08, 2019 11:23 am
by Gazza
How accurate for range finding purposes is the parallax adjustment/focus on a scope?
Re: Parallax focusing/range finding accuracy
Posted: Fri Feb 08, 2019 12:19 pm
by Mattnall
It's better for short range, getting progressively worse the further out the target is.
The FT and HFT guys use it a lot and with much success apparently as their ranges are generally much closer than even rim fire cartridges. To get the benefit even at these shorter ranges a large wheel is attached to the paralax wheel to give a bigger diameter to gauge the distance/focus with more precision.
Re: Parallax focusing/range finding accuracy
Posted: Fri Feb 08, 2019 1:25 pm
by DaveT
Even the scope manufacturers say that the distance scales on the turret are only a guide and not a direct measuremt.
Re: Parallax focusing/range finding accuracy
Posted: Fri Feb 08, 2019 1:37 pm
by Gazza
I want to know this for hunting so I don't have to carry a range finder.
I'm shooting out to 200 yrds ish at the most.
If they are accurate to say 10 yds at 200 yds then that should do I guess.
I suppose there is the variable of eyesight too, one mans focus will not be the same as the other mans.
Oh, what a dilemma
Re: Parallax focusing/range finding accuracy
Posted: Fri Feb 08, 2019 1:41 pm
by Ovenpaa
For hunting zero at 100 yards and then set the point of impact 1" high and forget everything else.
Re: Parallax focusing/range finding accuracy
Posted: Fri Feb 08, 2019 2:48 pm
by dromia
If you can't get within 100yrds max of any UK quarry then you are not a hunter.
Re: Parallax focusing/range finding accuracy
Posted: Fri Feb 08, 2019 3:22 pm
by Sim G
Ovenpaa wrote:For hunting zero at 100 yards and then set the point of impact 1" high and forget everything else.
Exactly my practice.
Re: Parallax focusing/range finding accuracy
Posted: Fri Feb 08, 2019 3:22 pm
by Sim G
dromia wrote:If you can't get within 100yrds max of any UK quarry then you are not a hunter.
And near enough exactly my ethos
Re: Parallax focusing/range finding accuracy
Posted: Fri Feb 08, 2019 8:58 pm
by Grifff
Be very unlikely to get within 10 yards at 200. It's an art to tell between 50 and 55 yds with a 50x scope set up for ft looking at pellet marks on a steel plate.
Re: Parallax focusing/range finding accuracy
Posted: Sat Feb 09, 2019 11:33 am
by Ovenpaa
dromia wrote:If you can't get within 100yrds max of any UK quarry then you are not a hunter.
I have had a lot of fun stalking my quarry, equally I would not think twice about shooting a Fox at 175 yards and certainly would not try and get closer as they are constantly moving. Having said that a customer stalked two that were enjoying the early morning, not to get closer, just to get them in line so he could despatch them with a single shot from his .30-06