Retail And Business > Prince50's Paratrooper Sight
use this screw for crowning...
captain concrete:
its called a TAPCON screw. we use them in concrete work for fastening boards to concrete. they are extremely hard and strong. i used one this time on a para project and unlike using a regular wood screw, this did not get deformed in the crowning process. it barely scratched the paint on the screw. the one i used was about 1 1/2" long. any hardware store carries these for about .35 each. pic is not the best but you can see what they are. im sure most of you have seen them before.
buckmeister:
I don't think you want anything in the bore. A brass carriage bolt or bound head bolt an grinding compound are what is recommended.
buckmeister
panoz77:
I'd be scared of using a tapcon, if it wobbled it would F up the barrel.
captain concrete:
worked fine for me. nice bright un damaged bore with a nice even crown. use what you like but this works just fine.
Prince50:
So you used a Phillips head screwdriver, and put the shank of the screw in the bore?
I've never seen that, but it should work and will give a true 45 degree crown.
Not bad. Perhaps tape on the screw threads to protect the bore just in case.
Nice work.
Darin
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