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Author Topic: 16 ga Drilling 2.5 inch vs 2.75  (Read 799 times)

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Offline dougk

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16 ga Drilling 2.5 inch vs 2.75
« on: October 29, 2010, 04:15:24 PM »
When visually inspecting an older drilling how can you determine the 16ga is 2.75 vs 2.5 inches?
thanks
Doug
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Offline mcwoodduck

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Re: 16 ga Drilling 2.5 inch vs 2.75
« Reply #1 on: October 29, 2010, 04:22:04 PM »
Take the barrels off.
If they are 2.5" you will see a 65 somewhere under the barrels.
If they are 2 .75 you will see a 70.
The 65 and 70 are mm.
if you need 2.5" shells give RST a call.
Great guys.  They load 2.5" shells for most ga and in a wide variety of loadings.
http://rstshells.com/
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Offline coyotejoe

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Re: 16 ga Drilling 2.5 inch vs 2.75
« Reply #2 on: November 14, 2010, 05:46:53 AM »
Any gunsmith should have a gauge to measure chamber length. Shotshell length is measured by the fired case with crimp unfolded. You can modify 2 3/4" shells for a 2 1/2 or 2 5/8" chamber by cutting off the crimp and glueing in a top wad.
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