Redfield Mount Question

[flyguy]

I have done a few of these and have had no trouble .I simply use a carbide bit to drill thru the hard surface then finish with aregular high speed bit.If someone says "heat" run like mad. flyguy

Information

Warning: This is a relatively older thread This discussion is older than 360 days. Some information contained in it may no longer be current.

[USMC8531]

Years ago... It is called 'spot annealing' a softening of the metal only where to be drilled. This is an easy one for a qualified gunplumber.

[Cosine26]

Here is some information about drilling and tapping the 03A3 wrrtitten by Harold McFarland who was a premier gunsmith during the era when many 03A3's were being converted into sporters. Hope this is of some value.
http://i116.photobucket.com/albums/o...DT03A30001.jpg

[Rick H.]

Thanks for the article Cosine 26. It has some useful information in it. Rick