First, for those who recall my earlier posts where I was all happy and shit that SW hooked me up on my repair....disregard.
At this point, this gun is leading up after ONE round, as in I need to use Chore Boy to get out the lead.
The leading is throughout the bore, not just in one spot or area. It's not a haze; it's more like heavy splotching all over the place....and full length of the bore.
This has been a problem with commercial cast bullets as well (which I expect since that's been my experience with all my guns).
But with my softer alloyed bullets with excellent lube, I expected better. For reference, my 45 Colt Vaquero, has zero leading and the accuracy is excellent. Same goes for my 686.
Not sure where to start, so I slugged one chamber and then the bore, and here's what I came up with:
chamber slugged at .4295.
I then took that slug and used it to slug the bore. I'm getting .4285 groove-to-groove. Land-to-land is more difficult to measure because there are 5 lands and 5 grooves so they are not opposite each other. I lubrisized these bullets down to .430 so, as I understand it, these values are not problematic. Undersized bullet cannot be the cause of this leading.
What else can it be? Bore roughness? Do I need to firelap? Send it back again to Smith? Sell it? What?
I will add that the Ruger bore is bright and shiny. Neither of my Smiths have that, but that may be simply a function of the process that Smith uses to rifle the bore, and besides, my 686 has the same dull appearance but I have no complaints about it's performance.
One other thing. My Henry 45 (no mirror bright bore) can shoot all day long with zero leading.
What the flock is going on here?
At this point I'm about ready to chuck the goddamn thing.
More leading woes with 629-New picture
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Last edited by beaurrr on Wed Dec 23, 2015 12:48 pm, edited 1 time in total.
Hell is where:
The British are the chefs
The Swiss are the lovers
The French are the mechanics
The Italians make everything run on time
And the Germans are the police
The British are the chefs
The Swiss are the lovers
The French are the mechanics
The Italians make everything run on time
And the Germans are the police