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Cleaning a bore

 
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  #8  
Old 01-15-2010, 10:22 PM
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Re: Cleaning a bore

I am not 50 but I am an advocate of lubing the barrel before the first foul shot. I believe that there is less copper fouling during the 1st shot. This cuts down on the copper fouling of sequential shots. I have NO scientific proof to back this up but it seems to have worked consistently for me with all of my rifles when visually inspected. I store clean bores with some sort of anti corrosive and swab clean and re-lube with fresh oil just before the first shot. An old BR shooter shared that trick with me.

Another thing I have seen with both the dry method AND the lubed method is notable velocity differences between the 1st and sometimes the 2nd foul shots and the rest of the shots. I typically see a velocity difference with all 1st shots from a cold bore but only a few FPS above average where the 1st one or two foul shots are vastly different from the average.
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Last edited by Michael Eichele; 01-15-2010 at 10:27 PM.
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Old 01-15-2010, 11:18 PM
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Re: Cleaning a bore

Quote:
Originally Posted by Michael Eichele View Post
I am not 50 but I am an advocate of lubing the barrel before the first foul shot. I believe that there is less copper fouling during the 1st shot. This cuts down on the copper fouling of sequential shots. I have NO scientific proof to back this up but it seems to have worked consistently for me with all of my rifles when visually inspected. I store clean bores with some sort of anti corrosive and swab clean and re-lube with fresh oil just before the first shot. An old BR shooter shared that trick with me.

Another thing I have seen with both the dry method AND the lubed method is notable velocity differences between the 1st and sometimes the 2nd foul shots and the rest of the shots. I typically see a velocity difference with all 1st shots from a cold bore but only a few FPS above average where the 1st one or two foul shots are vastly different from the average.
ME,

I couldn't quite make out from paragraph two above what velocity differences you see in your fouling shots and the rest of the shots depending on if the bore was left dry or lubed. Did I miss your intent there? Have you noticed a difference between lubed/dry bores fouling shots compared to the rest of the shots?

What lube do you use?
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Old 01-16-2010, 01:26 AM
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Re: Cleaning a bore

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Originally Posted by jmden View Post
ME,

I couldn't quite make out from paragraph two above what velocity differences you see in your fouling shots and the rest of the shots depending on if the bore was left dry or lubed. Did I miss your intent there? Have you noticed a difference between lubed/dry bores fouling shots compared to the rest of the shots?

What lube do you use?
I dont really know what I intended to convey here. Just rambling.

I guess what I was trying to say is that most of the time when I fire a foul shot in a clean barrel regardless of whether or not I lubed it or left it dry, I see a velocity difference on the first foul shot and sometimes the second. Different in relation to the overall average that is.


I prefer some type light weight oil such as rem oil. I use a few drops on a clean patch and swab once.
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  #11  
Old 01-16-2010, 02:18 PM
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Re: Cleaning a bore

I am unfortunately well over 50, and I have always stored cleaned rifles with the bore lubed. Part of the reason was that was how I was taught to do it and just before hunting season I check my zero and leave the gun fouled until after season is over. However, I recently started to work up loads for a couple of my rifles and decided to see if my cold bore, un-lubed shots hit to point of aim. I found out three things: 1) yes, it did hit very close to point of aim, 2) I was shooting through my chrony and the velocity of the dry barrel shot was considerably lower than the rest, and 3) the barrel was somewhat more difficult to clean afterward, depending on how many shots I fired. I am firmly convinced that the "fouling" shot does two important things, it removes the oil from the bore and it lays down its own lubricant in form of carbon deposits (graphite) for following shots. This is my opinion only, but it has worked well for me for many years, so I have no intention of changing anything.
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  #12  
Old 01-16-2010, 04:14 PM
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Re: Cleaning a bore

You are almost convincing me to start oiling my first shot. Thanks A LOT!!!!

Tank
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  #13  
Old 01-16-2010, 04:50 PM
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Re: Cleaning a bore

Clean bore shots (the first shot fired on a cleaned bore) will sometimes deviate wildly from fouled bore MVs, and it's not uncommon for the the POI to vary somewhat also - which is what one should expect with wild variation in muzzle velocity, let alone with cleaned bore surface contacting the versus the fouled bore surface. I've had dry, clean bore MV drops of 125 fps from normal fouled bore shots in both of my Tikka T3 7mm Rem Mags before they were Gun Juice treated.

This is why I like to leave my rifle fouled rather than cleaning and oiling every time I come back from a hunt or shooting. This is also why I like Gun Juice treated bores. They foul more slowly and GJ provides a sealing film over the bare steel, adding to corrosion resistance. Disclaimer -> all IMO.
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