Re: Brand New Gun- Any Procedures For "Break In" or Just Fire It?
Barrel break procedures were written by custom barrel makers and their barrels can be smooth as glass as you could see in the videos I provided.
[img width=397 height=450]http://i122.photobucket.com/albums/o254/bigedp51/Clear.gif[/img]
The problem 95% of us have is we have standard commercial barrels that are not smooth and hand lapped and are more like etched, frosted glass or sand blasted glass.
[img width=398 height=450]http://i122.photobucket.com/albums/o254/bigedp51/FrostedClear.gif[/img]
There are two types of copper transfer methods to your barrels, high temperature vaporized copper that is like a plating process and copper that sticks to rough areas of the bore through friction.
If you take magnifying glasses and a bore light you will be able to see "inside" your bore and be able to make a determination of how smooth your bore is by having a close up look at the surface of your bore.
(cheep bastards bore scope)
[img width=600 height=450]http://i122.photobucket.com/albums/o254/bigedp51/IMGP7334.jpg[/img]
If you can see lines "across" the bullets path like below, then in my opinion it is a waste of time using any break in procedures because a bore brush and copper solvent are "NOT" going to smooth your bore, and is why the Savage barrel below is being Fire Lapped.
[img width=205 height=450]http://i122.photobucket.com/albums/o254/bigedp51/firelapping.jpg[/img]
[img width=600 height=434]http://i122.photobucket.com/albums/o254/bigedp51/firelapping2.jpg[/img]
Many people do not like or believe in using J&B Bore Paste or Iosso Bore polish, but what you should remember is the polishing/cleaning media is softer than barrel steel and will not scratch or harm the bore. Also remember at 43,000 cup chamber pressure and above is where the peak flame temperature has reached the melting point of modern barrel steels. In simple language this means shooting your rifle does more harm to the bore than J&B or other polishing/cleaning compounds would ever do to your barrel.
http://i122.photobucket.com/albums/o...1/IMGP7252.jpg
With a standard rough factory barrel that has tooling marks I clean the bore with a foam bore cleaner to remove the copper and then use J&B or Iosso bore polish to "polish" and "smooth" the rough areas. And use "shooting" to further smooth the bore with the idea of less is more when it comes to putting a cleaning rod inside the bore.
You will never break in a barrel using cleaning/break in procedures outlined here when the bore looks like the one below.
[img width=600 height=450]http://i122.photobucket.com/albums/o254/bigedp51/roughbore.jpg[/img]
Your break in procedures were written for custom made barrels with bores as smooth as glass, and not a rough bore on a common commercial rifle.
http://i122.photobucket.com/albums/o...smoothbore.jpg
Re: Brand New Gun- Any Procedures For "Break In" or Just Fire It?
I have had 2 Stevens 200 rifles, a 7mm08 and 300 mag. I used the above break-in using JB bore paste and polished after each shot for 25 shots. The 7mm 08 now has about 120 rounds through it and will shoot .5 -.75 at 100 all day long with factory remington 120. The 300 has about 60 rounds and does about 1.2 - 1.5 at 200 with factory 165's, and has actually gone under an inch a couple of 3 shot groups on really good days. I'll keep doing what I'm doing and what I've been doing for the last 40 years of shooting.. I little bit of extra time and care doesn't seem to hurt in the accuracy department!!! And they are VERY easy to clean with little to no copper fouling!!