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Please read post #8 it is common sense.
The feed ramp is not to be modified,it is machined to close tolerances and
it is not the cause of malfunctions,no benefits can be gained from changing
its dimensions and the opposite is bound to be the result of doing that.
Polishing,lapping,fine grinding and so on remove stock from the work and
unless you have a way to accurately measure what you do and you know what
you are trying to do you should not do it.If you damage the frame then you will
ruin the firearm.
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