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> ES and internal neck finish
ES and internal neck finish
@ 10:26 am (GMT) |
Paul LevermanI was loading up some rounds and was using some old brass I had laying around. While cleaning them, I used a nylon brush to take the carbon out of the inside of the neck. Well, that didn't work worth a pinch. So I swapped it out for a bronze brush, and holy crap on a cracker, did they come clean. Only problem was it also roughed up the inner diameter. This was easily cured by a bit of maroon poly (same as used for throat polishing). Now they are bright, clean and really smooth inside.So the question is this: because the finish is so smooth, I'm thinking it will reduce the co-efficient of friction and let the bullet slide out easier. Will this further enhance the reduction of ES an appreciable amount? I don't do enough shooting to quantify this, so I was wondering if any of you would be interested in doing the experiment and reporting back. |
Replies
@ 07:04 am (GMT) |
Nathan FosterRe: ES and internal neck finishI Paul, you will have to test it to see. I find the carbon and trace graphite from the powder acts as its own low level lube so it may have been a case of smooth, then rough, then smooth again. It is very hard to state what effect this will have when there are so many variables including variations in neck tension from rifle to rifle. |
@ 07:27 am (GMT) |
Bryan WebsterRe: ES and internal neck finishWhen I take brass out of my tumbler the interior of the cases are clean and shiny. I use rice in place of conventional products and leave things running for 3 hours for a 100 brass load. It does a decent job on the primer pockets as well although it does not take everything out. If you try this you need small grain sized rice. |
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@ 01:51 pm (GMT) |
Paul LevermanRe: ES and internal neck finishIt would definitely be hard to quantify across the board, more than likely an individual basis. It turns out that right after I posted that, I had to load up some 338s, so I did the polish on the neck. I can compare them to the previous loads that were recorded in the journal and see if it is worth pursuing.Dealing with each rifle on an individual basis, all other factors should be equal, or close to it, as your own procedures should be a constant. The one major change would be the treatment on the inside of the neck. Bryan - I don't mechanically clean my cases. Each are done by hand on a one-by-one method. A lot of forty can be cleaned in about thirty minutes. I really need to get a life, or move south where there are more daylight hours. |
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@ 09:24 am (GMT) |
Bryan WebsterRe: ES and internal neck finishI thought long and hard about a move south...but out rifle range is already crowded most of the time, and any time I have been down south wanting to use the range it was far worse. |
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@ 12:40 pm (GMT) |
Paul LevermanRe: ES and internal neck finishSouth has a lot of potential. But two major drawbacks that keep me here: way too many people no matter where you go, and, well, why would I leave God's backyard? |
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