photon RT zero

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bongo
Posts: 3
Joined: 13 May 2018, 16:28
Location: macclesfield

photon RT zero

Post by bongo » 13 May 2018, 21:54

Hi i have a photon RT and i have zeroed at 100 yards settings X=+8 and Y=-44 , the -44 is my concern . If i zero at 50 yards will my vertical (Y)-44 adj increase or decrease from -44 , I would like to zero at about 60 yards but i fear i will then run out of adjustment as max clicks is 50 , I don't want to start messing with mounts again as its been a nightmare fitting various combinations to a sako 85 , I had to put a rail on due to the mount spacing on the tube would not bridge the ejection port and reach the dovetails , and then scope clearance of the rail so all adding height , i do have adjustable mounts i could use but it would again add another 3 mm to the height ok only 3 mm but that's without the moa tilt , i feel is to high above the barrel as it is . any help or advice would be very much appreciated , if at 50 yards my Y adj would be -22 it would make me very happy . Maybe i can keep it simple and just use hold over/under , but i guess it wont be so easy .

C.J
Posts: 12
Joined: 07 Feb 2016, 20:35
Location: Devon

Re: photon RT zero

Post by C.J » 14 May 2018, 21:07

Assuming you have a 6.0 x 50 then 1 click is 9.4mm @ 100 meters .

so Y=-46 should put you 18.8 mm high (3/4 inch) @ 100 meters .

You don't say what calibre you're using but that should be point and shoot for Photon ranges.

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cliveward
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Re: photon RT zero

Post by cliveward » 15 May 2018, 12:58

Bongo,

It sounds as though you need a 20MOA rail to bring the Y back into the centre when zeroed.


Cheers





Clive

bongo
Posts: 3
Joined: 13 May 2018, 16:28
Location: macclesfield

Re: photon RT zero

Post by bongo » 17 May 2018, 21:16

error
Last edited by bongo on 17 May 2018, 21:25, edited 2 times in total.

bongo
Posts: 3
Joined: 13 May 2018, 16:28
Location: macclesfield

Re: photon RT zero

Post by bongo » 17 May 2018, 21:19

Hi all sorry i have not replied sooner , But you read my mind and that is exactly what i have done , resulting in now my X = +4 Y = +35 . before x = +8 y = -44 , 15 clicks is much better than just 6 clicks remaining , and more importantly if necessary i can go way beyond 100 yards , and at say 50/70 aim a tad high , much better than maxed out at 100 . I must say i was getting a bit concerned as i was trying to get the poi down and second guessing if i should of gone for a 10 moa . I hope this helps others , and knowing each click is 9.4mm and a rough guide 5 clicks = 2" @ 100 yards . i found that useful zeroing in the daylight as all i can see is black blob of a target , the one shot zero is very good but for fine adjustment i found it easier .I have a sako 85 in 243 .

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