I'm a Browning guy so understand that I may be unintentionally biased. And, although I have shot my Browning's a good bit, I have not tried any other brand of sights as a comparison. With that said, Browning rear soule sights (actually made by AMT/AET for Browning) has had some problems and some perceived problems which, in some instances, have been blown way out of proportion. The sights are capable of match grade accuracy. Some of the following comments are from my book on the Browning BPCRs.
Some of the rear sights were found to have, what some shooters believe to be, excessive amount of play or slack in the windage-base/ladder assembly in the fore and aft (front and back) direction. The movement is greater on some due to slight lot-to-lot machining variances in the windage base assembly that supports the sight staff (ladder assembly). The total amount of play is typically no more than 1/8” at the top of the staff. Browning determined the movement was not detrimental to the functioning and accuracy of the sight as have I. Using a simple trigonometric calculation confirms Browning’s determination. The maximum vertical error will not exceed plus or minus 0.0005” in the peephole position, which is much better, actually 20 times better than the maximum accuracy capabilities of the vernier scale. The calculation assumes the peephole is at full height, the worse case condition.
Two additional problems reported are ladder detent reliability, and excessive lateral (left and right) movement in the rear sight ladder/staff. In all cases I’m aware the root cause of lateral movement was traced to a missing, broken, or improperly installed spring between the base of the sight ladder and the sight windage barrel. The detent problem has been fixed using various methods.
So allow me to put all this in perspective. There were around 4200 Browning BPCRs manufactured. From what I can tell, only a small percentage had problems with the rear soule sight. Problems with the front sights are basically nonexistent. Based on all the feedback I’ve received there are several suppliers (MVA, Baldwin, Hoke, Kelly, Shaver, Kermitool, to name a few) that make high-quality sights which are, construction wise a notch above the Browning’s, but they can be quite expensive and are not capable of higher accuracy. I’ve never had a problem with any of my Browning sights and hear the same from many Browning owners. If you do get the Browning I suggest you invest in a Hadley-style selectable eyecup.
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