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Old 07-12-2009, 21:32   #49
old wanderer
Senior Member
Join Date: Dec 2008
Posts: 240
In case anyone ever shows up on this forum again...

I have several Glock 20 barrel configurations....most are ported.

In reading seems like the porting likes the lighter faster bullets rather than the heavy slower ones...

So I was looking for data on the 135 gr bullet.

My barrels are:

G20 with 5.2" with 2 external ports and 2 internal "c" ports.

G20 With a Tactical slide and 4 internal ports.

G29 with 2 external ports...

I have several classes comming up where follow up shots are really important. Did well last time with the stock Glock 20c, butl not starting to build something faster/better.
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