magazine lips scratching brass

WhelanLad

WhelanLad

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what to do on model Seven when cycle a round in, it scratches fk out of the brass...... me no likey!

its the lips on the receiver? what sorta holds the rounds in... An it happens on the WAY in- i can literally See it happening as i slowly close the Bolt.

fine emry??


Would it just be a case of finely sanding down the section where it is catching before it frees itself from the lips an up into the chamber??
seemingly is as the bullet slides up the feed ramp, it get on a bit of an angle an the last 1/4 of case is getting scratched up-

ive given it a few minutes of sanding with emry cloth but i think i need a new piece ,....as its not really changing much,,,, but i am also hesitant because if i take too mch off??? it may fk the whole show up ay!

what would you do ?

i noticed on my Kimber it possibly was doin the same for the original owner, an he had dremelled a little bit of the lips where it musta needed it too.... so its not uncommon... hm
 
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Falconflyer said:
I would use a stone to break the sharp edge. It's too hard to get a nice edge with a dremel.
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yes the kimber one you can noticably see that its had some taken off , an was never smoothened out with paper or stone etc.

so do you suggest just keep running the emry clothe over it?

ive done some more an although it has no burr..... its reasonably smooth, but it is also quite 'sharp' over all, an its still gouging the brass
 
i think i am getting somewhere fellas, thanks for the tips---

the gouging is reduced to scratches but im hoping to eliminate it as best i can with polishing per say now
 
Use a stone or fine file, go across the edge not with the edge. All you're needing to do is break the point and polish, not alter the shape dramatically, should take maybe two minutes to stone and polish both sides of the feed lips.
 
Lodi said:
Use a stone or fine file, go across the edge not with the edge. All you're needing to do is break the point and polish, not alter the shape dramatically, should take maybe two minutes to stone and polish both sides of the feed lips.
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haha its 5:30 am... i went to bed tinkering with it at 11:30, i woke a while ago an been trying to find more suitable fine fine file or emry, but alas i find the ladys nail file...... i think i am there.

but i get what ya saying with just wanting to knock that edge off it---- it just doesnt feel like there is anything obvious / sharp but the markings are definatly getting lighter- soo i must be on a decent track :)
 
I’m sure you have this figured out by now but I just thought I’d add another method. I have these little rubbery grit impregnated polishing bits for my dremel that I use for polishing feed rails and magazine lips. They work super well for getting a smooth finish without sanding for hours or removing too much material. They don’t last long but all it takes is a few minutes to get rid of the burrs and sharp edges. I don’t think it would be possible to take off too much material without going through many bits and spending some serious effort and time.
 
jbmauser said:
I’m sure you have this figured out by now but I just thought I’d add another method. I have these little rubbery grit impregnated polishing bits for my dremel that I use for polishing feed rails and magazine lips. They work super well for getting a smooth finish without sanding for hours or removing too much material. They don’t last long but all it takes is a few minutes to get rid of the burrs and sharp edges. I don’t think it would be possible to take off too much material without going through many bits and spending some serious effort and time.
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I have a wheel of some soft material for Dremel, I was thinking of this.
But I have sort of sorted it enough to not be marking much.
Will use Dremel an soft brush next if need be
 
You should get some 1000g Wet/Dry paper (OR Finer) to 'polish' those lips. It will come in handy for working on the action of your guns, as well as many other uses. It's Not fine enough to remove scratches on glass - like on headlites - but still will come in handy. If you can buy just 1-2 sheets that will suffice for a long time unless you take on many projects.
 
jbmauser said:
I’m sure you have this figured out by now but I just thought I’d add another method. I have these little rubbery grit impregnated polishing bits for my dremel that I use for polishing feed rails and magazine lips. They work super well for getting a smooth finish without sanding for hours or removing too much material. They don’t last long but all it takes is a few minutes to get rid of the burrs and sharp edges. I don’t think it would be possible to take off too much material without going through many bits and spending some serious effort and time.
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I use those too, the little green ones, they even make bullet shaped ones that are perfect for feed ramps.
 
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