Bullet change and more copper fouling

Tac-O

Formerly 'Ryan Tockstein'
Joined
Apr 28, 2019
Messages
430
Location
Sandy, UT
On the second batch of 25 rounds I used the same brass as the first batch... So the second batch was second firing
 

J E Custom

Well-Known Member
Joined
Jul 29, 2004
Messages
10,599
Location
Texas
The only thing I would have done differently would be to not use the JB on the barrel if it was not fouling. You went to the trouble to do a break in and was getting good results. JB is an abrasive and by using it you defeated the break in process.

I would also recommend never making more than one change at a time. This allows you to see the change and the problem can be diagnosed easier, especially if you have a good load and just want to improve it. It is easy to second guess a problem but if you only change one thing at a time, it is much easier.

Also I have shot Speer hot cores and found them no worse than other bullets for fouling. I mostly used them for break in because they were about half price and reasonably accurate. Once break in is complete I always start testing with my first choice of bullets so I have a bench mark. :)

J E CUSTOM
 

Tac-O

Formerly 'Ryan Tockstein'
Joined
Apr 28, 2019
Messages
430
Location
Sandy, UT
The only thing I would have done differently would be to not use the JB on the barrel if it was not fouling. You went to the trouble to do a break in and was getting good results. JB is an abrasive and by using it you defeated the break in process.

I would also recommend never making more than one change at a time. This allows you to see the change and the problem can be diagnosed easier, especially if you have a good load and just want to improve it. It is easy to second guess a problem but if you only change one thing at a time, it is much easier.

Also I have shot Speer hot cores and found them no worse than other bullets for fouling. I mostly used them for break in because they were about half price and reasonably accurate. Once break in is complete I always start testing with my first choice of bullets so I have a bench mark. :)

J E CUSTOM
I did shoot more Sierras after using the JBs and the amount of copper pickup was the same. So I don't think the use of JBs nullified my breaking in the barrel early on.

After I work my way through some of this virgin starline and then fire it again, if I see the same results of virgin causing fouling and nonvirgin not causing fouling, then I'll have my answer!
 

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