Testing Glock Barrels: Zero Shift and Accuracy

Faxon's new line of Pistol Barrels:
http://faxonfirearms.com/handgun-barrels/glock/g19/

KEArms:
http://www.kearms.com/products-for-glock

The rest of the barrels tested in this video were different generation Glock OEM.

I recently acquired a brand new Faxon "match grade" Glock 19 barrel, and in the process of swapping it out, I was curious: how much of a zero shift would I see now that I have a red dot enhanced pistol?

The practical accuracy capabilities of a red dot enhanced pistol are much improved over standard sights.

How much does zero shift if you change barrels?
Which barrel(s) provide the best groups?

To perform this test, I used a ransom rest and did not move the frame throughout the process, swapped out barrels, and fired 5 round groups out of each barrel without changing the point of aim.

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