Pellet projection - question for all

[vizlauk 1,568]

Hi all, I have recently changed my air rifle from a aas410 , to the new bsa scorpion se .22 - I have noticed over distance that the pellets seem to be going offline of my target, im aware that a .22 pellet propells from the barrel in a arc like flight, am I wrong in thinking that the arc should only be in the up - down projection ?

As when im setting my zero for hunting at 30yds putting pellet on pellet at 30yrd - then if I try to find my point of aim on say 20yrd there is a lot of sidewards differance on the point of inpact, the same goes for say 40yrds - no only the up - down but sidewards aswell !

I had the same results on my s410 as im having with the se, both guns have been fitted with a twink silencer, which im now thinking may be the cause of this sidewards differance, I have checked to see if the silencer if mating the barrel flush & square (which it seems to be ), I have also checked the exit end of the silencer incase the pellets have been clipping it on exit (which the was a very light mark ( which I have since filed & smoothed off), is the sidewards projection normal ? If not any advice, I have tried removing the silencer & trying the se with just the airstripper that it came with & it does seem better, but this is getting to me & would like to hear your input / advice - thanks Sean.

Edited October 3, 2011 by vizlauk

[Sweeney-Todd 208]

Hi Viz.

 

Sounds like you are either canting the rifle, or the reticule stadia isnt level to the rifles scope rail, proberbly the latter.

 

Get the rifle fixed and level on a bench or table, loosen the mount rings until you can just rotate the scope.

Put up a plumb line about 10 yads away, and looking through the scope, line up the ret stadia with the plumb line, and then gently tighten up your mount rings again.

 

Nice rifle by the way.

 

Hope it helps to solve your problem.

 

 

Bill.

[vizlauk 1,568]

Thanks for your reply bill, I must say the scopes do look fairly good, but I will try it , just to rule it out, lets hope it's as simple as it sounds.

Thanks for the compliment on the gun - Im well impressed with it, I just need to sort this problem out.

Regards Sean

[markha 99]

Crap scope mounts that are not centred correctly on the scope rail.

[Sweeney-Todd 208]

Thanks for your reply bill, I must say the scopes do look fairly good, but I will try it , just to rule it out, lets hope it's as simple as it sounds.

Thanks for the compliment on the gun - Im well impressed with it, I just need to sort this problem out.

Regards Sean

 

 

Hi Sean.

 

A knats knacker out of true can put you out by an inch or two at 50yds depending on the severity.

 

You can buy a scope level bubble from Uttings, attaches to the scope rail the same as a mount would, makes leveling the rifle so much easier, and the subsiquent alighning of the ret, a good investment for about £15.00 I think.

 

As Mark says too, naff scope mounts wont help you much.

 

Let us know how you get on mate.

 

ATB.

 

 

 

Bill

[pianoman 3,587]

All good and correct answers above. I'd buy a pair of Sportsmatch mounts which are superbly made and spirit level the rifle; then adjust the scope for your perfect eye relief and finally centre the reticle with a second spirit level to the rilfle's bore.

 

Any sidewards strike of shot off the centre horizontal is a sign that something is off-centre and canting or tilting over.

 

Simon

[mikeyblue 28]

Hi Vizla,

 

As has already been sugested, its either canting, scope canted or mounts. Something to take into account for BSA shooters is the scope rail is 13mm rather than the 11mm of most air rifles. I have found this has effected my scope on the R10 in the past. I now use these mount which centres my scope perfetly to the bore.

 

http://www.ebay.co.uk/itm/SPORTSMATCH-TO6C-1-13mm-Dovetail-Rifle-Scope-Mounts-/260797364308?pt=UK_SportingGoods_Hunting_ShootingSports_ET&hash=item3cb8bbf854

 

A good way to check if the mounts sit correctly on the rail, is to put one mount on the rail one way, and one facing the other and but them up to each other. This way you can see if they are not quite parralel to each other, they will not sit central to the bore.

 

Hope this helps.

 

Please feel free to PM if required.

 

Mikey.

[pedro68 3]

hi there , im having to exact same problem with my s200, im pulling my hair out or whats left of it trying to solve this problem. i have done as suggested by mikey and want to check i have done it correctly . i put the first mount with the allen nuts facing left the other mount with the allen nuts facing right , now should they be aligned when put together like this as these mounts are about 3mm off set from each other this way.when the allen nuts are both on the same side they look ok to the naked eye. what do you suggest and what can i do to fix this.

[mikeyblue 28]

Hi Pedro,

 

3mm isnt to bad, not enough to cause major issues. Pretty sure the problem would be either the scope canted in its mounts, or the rifle is canted when firing. Bear in mind you may not think the scope is canted in your mounts, but you may be canting the rifle to compensate making the cross-hair seem horizontle.

 

Have a look at this very good video, after watching this, this is now how i mount my scopes as I used to be a 'serial canter'. Now i know if my sight picture is horizontal, I am not canting the action over.

 

 

Hope this helps.

 

Mikey.

[pedro68 3]

hi again, i put put a spirit level on the gun and then a level on the mounts and the mount is well off the level ,canting over to the left by about a cpl mm i then checked the second mount and it to is off, would this be causing my problems and what mounts do you recommend i buy as i now have 2 set of mounts that are useless and i dont want a third.

 

Peter

[vizlauk 1,568]

Hi Vizla,

 

As has already been sugested, its either canting, scope canted or mounts. Something to take into account for BSA shooters is the scope rail is 13mm rather than the 11mm of most air rifles. I have found this has effected my scope on the R10 in the past. I now use these mount which centres my scope perfetly to the bore.

 

http://www.ebay.co.u...=item3cb8bbf854

 

A good way to check if the mounts sit correctly on the rail, is to put one mount on the rail one way, and one facing the other and but them up to each other. This way you can see if they are not quite parralel to each other, they will not sit central to the bore.

 

Hope this helps.

 

Please feel free to PM if required.

 

Mikey.

 

Many thanks , spot on, I have just removed my scopes & mounts & tried the methods you have advised me, the mounts are a mile out, also the mounts are 10mm dovetail ! Looks like a trip to the gun dealers tomorrow, I will let you know how I get on, A big thank you, your advice has been very helpful indeed.

Regards Sean.

[mikeyblue 28]

Hi Sean,

 

No probs pal glad to help. Just to add them mounts on ebay were the only 13mm ones i could find, so if you dealer cant get them they are your best bet.

 

Regards,

 

Mikey.

[pedro68 3]

hi mikey, i watched the clip you posted and thats pretty much how i had set the scope up , if i put the mount on the scope and look along the rifle it actual looks off centre from the barrel by a few mill or so and canting over , surely this would explain what once zeroed at 30 yards and a target at say 15 yards is set up and i put the cross hairs on centre the pellet lands of to the left.im starting to panic here

[mikeyblue 28]

Hi Peter,

 

Best bet is check the scope crosshair is square. Using a plumbline and a level on the action.

 

If you get stuck PM me and we can have a chat.

 

Edited to say it could also depend on your scope settings eg Parralex error.

 

And regards to mounts Sportsmatch are rcognised as good quality mounts but still at a reasonable price. Again Ebay is a good place to source them.

 

Mikey.

Edited October 3, 2011 by mikeyblue

[pedro68 3]

hi mikey , i tried to pm you , i would let me ,said you were unable to receive pm's , i have seen on ebay you can buy sports match adjustable mounts ,could this be the way to go or can i modify the ones i have some how to make the level and more centred .i dont want to keep throwing money at this until i know it will defo fix it. i have already tried setting the scope up with the spirit level and plumb line so i not sure it could be that, i never gave it much thought before but it seems to me that the mounts should be level and centre and everything else will fall into place, but what the hell do i know .i want to enjoy my shooting and not constantly messin about with these scopes and stuff but i dont feel i can until i get this sorted.i appreciate your help.

 

Peter