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I am fairly new to the carbine world. I have owned this rifle for a number of years, but have only recently begun to look at it more closely. Attached is a photo of the bottom of the receiver. Was the receiver originally milled like this in the spring tube area, or is it from something else? Thoughts?
during early production, prime contractors had drilling problems with the spring hole, the deep drill bits would start to walk. what make an serial number range is it ?
That is a milling cut not drill runout. Somebody goofd, but since it didn'teffect the usability of the receiver, it was passed anyway. Strange, but no big deal.
thanks for the responses. the receiver is an Inland, serial # 147,XXX.
I'll bet the drill did run out and the run out area was milled to alleviate the possibility of future cracking or to eliminate thin spots caused by the run out. It is not that uncommon to see repairs such as this on Inlands and Winchesters.
https://www.milsurps.com/images/impo...tCleanup-1.jpg
Ordinarily, I would agree with you on that point Brian, but not in this individual case. All of the "repairs" that I've seen look like the one that you show. They are much wider than this one. This one doesn't look like it shows the thinning that the precessing drill bit normally does nor the typical "wedge" shape hole that necessitates the wide milled cut. So unless the "drill runout" was nothing more than a tiny crack that might have been milled at a later date I have a hard time seeing this one as runout. It could be a millout of a crack that appeared later that was done during a rebuild.