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G26 · November 4th, 2009, 11:28

OEM OD of inner barrels usually around 8.XXmm, outer barrel's ID might be up to 9mm. From what I know, different manufacturer (or even same manufacturer with different models/revision) has slightly different diameters.

Unless you get the help from a person who has the exect same manufacturer/model/revision as yours, the reading might be off.

But then again, are boresighting useful for AS? With the instability and flight path of a BB, it might just give you a very rough guess of where the BB will impact, IMHO.

Also, how do you plan to set the hopup with boresighting?

November 4th, 2009, 11:28	#3
G26 Trader rating Join Date: Feb 2009 Location: South East Asia	OEM OD of inner barrels usually around 8.XXmm, outer barrel's ID might be up to 9mm. From what I know, different manufacturer (or even same manufacturer with different models/revision) has slightly different diameters. Unless you get the help from a person who has the exect same manufacturer/model/revision as yours, the reading might be off. But then again, are boresighting useful for AS? With the instability and flight path of a BB, it might just give you a very rough guess of where the BB will impact, IMHO. Also, how do you plan to set the hopup with boresighting?