Ranging with a fixed S&B 8x56 A7
- Thread starter aris
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nun_hunter
Well-Known Member
The info should be on the manufacturer's website. I've printed off their spec sheets for a PM2 before.
Yeah, I found this - but it isn't very clear to me how many minutes between the thin and thick parts of the reticle. Maybe i'm being dumb and need this explained to me like i'm 5
I'm used to ballistic calculations - numbers of minutes or mrad's of drop, but that doesn't help on a fixed scope with a reticle like this.
nun_hunter
Well-Known Member
You need this rather than the one you had
Following as I use the exact same.
That is for a 4-16x adjustable
Best I can find is the one for the L3 illuminated reticle - https://www.schmidtundbender.de/pho...midt-Bender-Datasheet-L3-FFP-8x56-Klassik.pdf
I cannot find an equivalent for the A7
That is for a 4-16x adjustable
Best I can find is the one for the L3 illuminated reticle - https://www.schmidtundbender.de/pho...midt-Bender-Datasheet-L3-FFP-8x56-Klassik.pdf
I cannot find an equivalent for the A7
That's for a 4-16 zoom - but still doesn't help me.
.243
By my calculation - a 4 to 5 MOA drop to 300yds
nun_hunter
Well-Known Member
nun_hunter
Well-Known Member
What magnification are you using and is it SFP?
I can't help bug think there is some math here which is escaping me.
As per title, fixed 8x56.
I did mange to find some info:
Distance between the bars: 145cm/100m
Bar: 14cm/100m
Crosshair: 1,4cm/100m
I'm thinking that between the bars is 145cm, that means that the vertical distance from the crosshairs to the bar is 72.5cm @ 100m. (110 yds)
Is it possible to convert this to MOA?
Still not sure of the maths.
As per title, fixed 8x56.
I did mange to find some info:
Distance between the bars: 145cm/100m
Bar: 14cm/100m
Crosshair: 1,4cm/100m
I'm thinking that between the bars is 145cm, that means that the vertical distance from the crosshairs to the bar is 72.5cm @ 100m. (110 yds)
Is it possible to convert this to MOA?
Still not sure of the maths.
A minute of angle is an inch or 2.5cm at 100yds. 72.5cm would be 29 MOA. This isn't exact for 110yds, but with respect, you're not going to be able to use a more precise conversion by eye anyway. Perhaps more useful is that the thickness of the bar is about 5MOA.
nun_hunter
Well-Known Member
If you use ballistic apps already then you can just tweak the input until it gives you an answer in MOA for 72.5cm.
The angle your trying to work out equates to the following: @100m the hight from cross hair to post is 72.5cm (or 28.525 inches)
a bit of basic trig using 25.416mm to the inch and 100 yards being 91.40m gives a distance from cross hair of 66.3cm (or 24.90 inches)
usuning 1.047 inch as true min of angle this gives circa 23.787 Moa @ 100 yards.
a bit of basic trig using 25.416mm to the inch and 100 yards being 91.40m gives a distance from cross hair of 66.3cm (or 24.90 inches)
usuning 1.047 inch as true min of angle this gives circa 23.787 Moa @ 100 yards.
I have been using S&B scopes with this reticule for many years . The way to shoot with them is not dialling-in and its not about mill dots and lines . Its all about knowing how to set up maximum point blank range and knowing the drift . Familurise yourself with maximum point blank rage ( the imaginary pipe you shoot through ) . We are not shooting small mamals / birds nor are we shooting 500 yards plus with such kit ! However Zero your 243 -308 say at 200 yards you can easy hit any size of deer in the hart /lungs from 50-250 yds plus or minus depending on your ammo if your trigger finger and wind reading is on . TBF you dont even need a rangefinder
Dialling in wind and elevation is really nor necessary with the correct setting and aiming a little bit higher or a little bit lower will deal with all eventualities , after that range is past then the skill level / experience is the deciding factor . I can get out to 500 yds by this method if the wind is predictable , after that it gets to be a risk . Let me say though i have shot rifles for many decades in comp and hunting.
Dont be fooled by all the gadgets , what batters is the " Nut behind the but " and there experience.
Although i do use dial in scopes i do prefer fixed zero settings - For Stalking ! If your after something for ringing steel at longer ranges etc ( As they dont run off on three legs etc when you make a bad shot ) You should get a scope with raised target turrets . The issue i find is if you get really into dialling in then you end up in a proper pickle when you need to take a second shot or more at beasts in a different range or angle in the wind, say dealing with fixing a bad shot
south-nofolk-stalker
Well-Known Member
Having shot one for many years goes roughly like this @300m no matter what calibre you shoot, you’re going to be dropping somewhere between 10 and 15 inches, first of all you need to find out how fast your bullets going with your chosen weight find a ballistics program. I use the hornady one personally and have done for donkeys years. That will tell you what you’re roughly what your bullet drop is, and if you know your animals, you will know how big a drop depending on the size of the shoulder of the animal , personally, I’ve shot red deer out to just 400 m with one purely based on hold over into the engine room
Yes 10-15 inches is about right. If I know the full MOA of the crosshair to the lower bar - I may be able to guestimate where on the reticle to hold over.
According to JBMballistics - if i'm doing it right and I got my muzzle velocity - I should see a 72cm (28 inches) drop at about 390 yards assuming a 100yd zero.
At 300 yards - that's a 33cm (13 inch) drop.
Basically the reticle from the cross to the base is 6.9 MOA.
I will test at the zero range next time i'm at Bisley.
Here is the table I produced - YMMV. If i've miscalculated - please let me know. I'm sure this will change a bit when I adjust the fps - mate of mine just got a Garmin Xero - so i'll be making use of that
Although looking in at it, possibly a decent investment until I can afford to get myself a dedicated target rifle! Few questions if I may
Did it take long for them to do?
Did you contact S&B Germany directly to arrange?
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