ASSRA Forum - 1885 Browning (Miroku) drill & tap receiver

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1885 Browning (Miroku) drill & tap receiver (Read 1483 times)

85TD22 Newbie Offline Posts: 2 Joined: Mar 23^rd, 2021	1885 Browning (Miroku) drill & tap receiver May 27^th, 2021 at 1:29pm	Print Post
	I need to mount a scope block to the top of my Browning (Miroku) Model 1885 LoWall's receiver. The screws are standard 6-48 thd., and I am concerned that the receiver has been hardened too much to allow that d & t. Similar Winchester (Miroku) rifles are factory d & t'd, so were done before any heat-treating. Has anyone out there done that work, and were there any difficulties ? Perhaps 6-40 or 6-32 screws could be an alternative ? FYI, Winchester didn't make the caliber I wanted. Life would have been so simple if Miroku had just d & t'd all their 1885's ! !


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OLD TUCK Senior Forum Member Offline Posts: 469 Location: Middleborough MA Joined: Oct 5^th, 2017	Re: 1885 Browning (Miroku) drill & tap receiver Reply #1 - May 27^th, 2021 at 2:32pm	Print Post
	85TD22, If anything you want to stick with the Finer pitch as in 6X48. The coarser pitch is removing more material in the threads. More opportunity to break the Tap. And as another aside, 6x32 is one of the least liked Taps in the Machining trade. I have no information as to the Heat treat or lack of or actual. The best guy here just may texasmack who seems to be involved with the information on Browning reproductions here. HTH regards, FITZ. OLD TUCK


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beltfed Frequent Elocutionist Offline Posts: 1825 Location: Central Wi Joined: Dec 20^th, 2007	Re: 1885 Browning (Miroku) drill & tap receiver Reply #2 - May 27^th, 2021 at 2:51pm	Print Post
	You might want to do your drilling and tapping on the barrel to place that rear scope base just in front of the receiver. The barrels are not heat treated to the hardness of the receivers. I have had no problem D&Ting on the barrels. AND definitely to the 6x48 thread. beltfed/arnie


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singleshotsam Oldtimer Offline Posts: 594 Location: Silver City NM Joined: Jan 15^th, 2009	Re: 1885 Browning (Miroku) drill & tap receiver Reply #3 - May 27^th, 2021 at 3:48pm	Print Post
	I have drilled and tapped several Miroku receivers in the past. None were very hard, a HS drill and fresh tap did the job without any issues. SSS


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JLouis Frequent Elocutionist Offline Posts: 10625 Joined: Apr 8^th, 2009	Re: 1885 Browning (Miroku) drill & tap receiver Reply #4 - May 28^th, 2021 at 11:06am	Print Post
	I have installed seater lugs on several different actions without any problems. The only exception was a Borchardt action and it was extremely hard.

	" It Is Better To Now Have Been A Has Been Than A Never Was Or A Wanna Be "
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texasmac Frequent Elocutionist Offline Posts: 2153 Location: Central Texas Joined: Aug 16^th, 2004	Re: 1885 Browning (Miroku) drill & tap receiver Reply #5 - May 30^th, 2021 at 8:45pm	Print Post
	Modern Miroku manufactured Browning 1885 High Wall receivers are made from high quality SAE 4140 steel hardened to RC 38-42. Therefore I would suspect the Low Wall receivers are the same but don't know for sure. I have never tried to drill and tap the receiver since the many rifles I've encountered were already d & t'd. Wayne

	NRA Life (Benefactor & President's Council) Member, TSRA Life Member, NSSF Member, Author & Publisher of the Browning BPCR book
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