Zero advice

[JimFromHorsham]

In the centre ( around the black dot ) was a 10 shot zero at 40mtrs with a .177 air rifle .

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all the bb strikes was a 40mtr zero with this ?

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[DerDer]

That lambda defence sure is something.

 

[TheFull9]

I've mostly never bothered with adjusting airsoft optics tbh.  The target is either close enough that I just use instinctive aiming, or it's far enough that an airsoft gun can't print any sort of useful group at said range in order to zero.  A very coarse adjustment to get the wide area of spray at 50m+ roughly kinda midde-ish within the actual glass window (optic type dependant) is all I bother with and you can often do that just pre game while making any necessary hop adjustment for the bbs you've got that day.  Then once in game you simply put the baddie in the middle of the glass, spray, and pray.

When I have zero'd a RIF it was at around 10m, 15 max, as I only have the TM bb catcher that's got a target area roughly 9-10" square.  The one time I used it to zero (was shooting a KWA GBB) I had to be very much sub 15m in order to shoot groups that were actually small enough to clearly define a mean point of impact and then be able to make any sort of useful sight adjustment.

 

[Mad dog 49]

It's people not knowing the difference between maximum effective range and maximum range. Also, 70 airsoft metres is usually between 40 and 50 actual metres. 

Absolutely this. My Scout will send a bb (0.48g) out to 90-95m on a calm day with no rain, I'm a pretty decent shot without being a bragger but at that distance I'm hitting some part of what I'm aiming at 2 in 10 shots or so. Spherical plastic blobs, no matter how well made or polished or out of what super expensive, upgraded to death electric peashooter are never going to be accurate like a ballistic round out of a rifled barrel. Whatever anyone tells you about their heroic exploits in taking headshots repeatedly at 70m, most airsoft engagements for AEGs happen at less than 30m, if you can hit a man sized target at 30m, that's good enough for the job in hand.