chamber after reaming what ?

Butch Lambert said:
Doc, be sure and put your mask on when you check today's mail.
Will you be at the Shilen Swap Meet tomorrow with your gas powered blender?
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Butch, Alas I will not be at the swap meet. I am recovering from two spine fractures (and subsequent surgery) I suffered in an auto accident. I will be sitting out this benchrest season but plan on shooting next season. Tim
 
Back to what to do after reaming.

Clean the cutting oil out and get it dry.

Examine it with a borescope looking for marks.

I usually use Flitz, some nylon brushes, and make a very few manual turns.
Clean it up and examine again.

If you think you see something some graphite powder will often 'stick' enough
after being puffed in to make a suspected problem more visible.

You can also use a colored wax crayon or grease pencil 'lead' rubbed gently on the surface.
 
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Hmm, I’ll admit it, I just can’t help myself and i polish chambers after cutting them. 280/320 ish grit on a split brass rod run in and out fast enough to give a 45 degree crosshatch finish...probably 5 seconds or less. I do polish the radiused edge of the chamber and the cone or counterbore along with the breech face...that just looks nicer and I like to think will be easier to clean.
 
Tim Oltersdorf said:
Butch, Alas I will not be at the swap meet. I am recovering from two spine fractures (and subsequent surgery) I suffered in an auto accident. I will be sitting out this benchrest season but plan on shooting next season. Tim
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Well that friggin' sux..... I can't even laff or "insert appropriate twerking or Peyronie's ref here"...... so, "Get Well"
 
After reading all this about polishing chambers, how many of you have tried to reduce a round rod in the lathe a thousandth or two by running the lathe at high speed and using 320 gr abrasive to reduce the diameter? How long did it take to get it done? Quite awhile any time I did it. A quick ten second or less inside the chamber polish with 320 grit abrasive isn’t going to change the dimensions of the chamber any. Just pretty it up for the customer.
 
Mike Bryant said:
After reading all this about polishing chambers, how many of you have tried to reduce a round rod in the lathe a thousandth or two by running the lathe at high speed and using 320 gr abrasive to reduce the diameter? How long did it take to get it done? Quite awhile any time I did it. A quick ten second or less inside the chamber polish with 320 grit abrasive isn’t going to change the dimensions of the chamber any. Just pretty it up for the customer.
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I'll agree with you Mike.
 
Not all reamers are created equal. Some will cut extremely smooth and some will leave the little rings that you can’t measure with a dial indicator. It seems to me that the closer you get the reamer to ream to diameter, the more likely you are to get those rings unless the reamer is very good. A reamer that cuts oversize seems less likely to get those rings. I may be all wet on this, but that’s the way I’ve seen it. If the reamer leaves those rings about a 2 to 3 second polish with 320 grit abrasive takes care of it. Probably doesn’t make a bit of difference in how the rifle shoots, but does help with not getting upset calls from customers.
 
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