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Mitch_C 07-24-2012 07:55 PM

Barrel mount torch & lazer
Have recently ordered a barrel mount torch and laser combo. It jut. Lamps on to the barrel to provide a fixing point for the accessories. I was told by someone that mounting thing to the barrel may effect its shooting. Is this true?

Sniper03 07-24-2012 08:05 PM


You have heard correctly. It will effect the barrel harmonics of the weapon which it will cause the point of impact to change between shots. But let me explain.

If you mount a mounting system, light or anything on the barrel you will have to re-zero the rifle with the equipment on the barrel. If you for example are standing or kneeling while firing the weapon with the new Zero set. If you rest any part of the barrel or the light and mount on something it will change the Zero as mentioned above. Once zeroed you must be sure that nothing has contact with the barrel when you are shooting. It will only change if the barrel has contact with something. That includes griping the items when shooting. When a rifle is fired the barrel actually whips! That is called barrel harmonics. Hope this makes sense!


Mitch_C 07-24-2012 08:25 PM

Thanx I'll rethink where I mount it

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