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User Panel
User Panel
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Posted: 10/22/2004 8:40:39 AM EDT
[#1]
Just drill it slowly.. If there is a burr, like asked about here commonly, just shoot it out.
I suppose you could "EDM" the gas port. |
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Posted: 10/22/2004 3:07:28 PM EDT
[#2]
Use a centering bit to start your hole. Drill very slowly, avoid overheating, and let the drill bit do the work. If possible switch to a brand new, extremely sharp drill bit immediately before breaking through the bore wall.
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Posted: 10/22/2004 7:17:24 PM EDT
[#3]
No no no! Have it EDM'd if you want it done right. Short of that, force a pulled bullet down the bore to the point of the port; lock the barrel in a set of V-blocks, locate & center punch or mill a flat, then locate; use a center drill to start, then a brand new screw machine bit to finish into the bullet.
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