on_one_wheel wrote:Sounds like some epic build up.
Perhaps it wants lapping?
Billo wrote:Maybe start using a bronze brush, i use to use nylon brushes by I find the don't shift copper easily
Lazarus wrote:Must be something amiss rich.
My Howa has had thousands of rounds through it and there's never been an issue with buildup or accuracy.
All I've ever done is a patch wet with CLP, leave it a couple of minutes, half a dozen passes with the bronze brush, another wet patch of CLP then dry patch until they come out clean.
And that's only if I'm not going to use it for a while, normally just a dry patch after use before it goes to bed.
bigrich wrote:Lazarus wrote:Must be something amiss rich.
My Howa has had thousands of rounds through it and there's never been an issue with buildup or accuracy.
All I've ever done is a patch wet with CLP, leave it a couple of minutes, half a dozen passes with the bronze brush, another wet patch of CLP then dry patch until they come out clean.
And that's only if I'm not going to use it for a while, normally just a dry patch after use before it goes to bed.
What caliber is your howa ? Not that it matters in this case. The accuracy of my 30-06 is good, but the amount of copper buildup is horrendous. Hopefully a bore scope will reveal more
bigrich wrote:well fellas , i got down my local GS this afternoon , but i was misinformed about them having a borescope . however , they did have a magnifying bore light. according to the owner the bore looks well finished , buut the rifling looks really deep . could this be the cause of my frustration in this rifle barrel needing so much effort with copper removal ? i'm still going to get it bore scoped anyway for peace of mind .
one thing that was suggested was a change to "bore tech" brand copper remover . i'll give this stuff a go . apparently the hoppe's 9 bench rest solvent i've been using has ammonia in it , same as sweet's .
my stainless tikka 6.5 tikka looks better in my eye's now due to the lack of effort to clean it
scoot wrote:How do you get experience???
Apollo wrote:scoot wrote:How do you get experience???
By doing a lot of looking with a proper Bore Scope and getting the advice from the likes of a Gunsmith who knows what he is doing and then comparing notes and listening to his/her advice on what you see.
I won't do it. I take a trip to my Gunsmith who's been in the business for way over 50 years and he will check my barrels, usually for free and just the chance to catch up with stuff. If anything needs work he will advise and I leave it with him.
Last visit was a check of my competition rifle bore and he said it has a touch of carbon in the throat, buy some Upper Engine Cleaner leave it in the sun and give it a soak whilst warm/hot. No charge.
He is the consultant Gunsmith for the NRAA and shoots Fullbore/F-Class. I'm a Benchrest Shooter and he knows I have a few skills he doesn't. Great bloke and certainly worth the near 3 hours it takes me to visit including the hour we talk for over things.
Oldbloke wrote:Does sound a lot to me.
20 rounds, mine are pretty clean after 2 goes with sweets.
Lazarus wrote:Apollo wrote:scoot wrote:How do you get experience???
By doing a lot of looking with a proper Bore Scope and getting the advice from the likes of a Gunsmith who knows what he is doing and then comparing notes and listening to his/her advice on what you see.
I won't do it. I take a trip to my Gunsmith who's been in the business for way over 50 years and he will check my barrels, usually for free and just the chance to catch up with stuff. If anything needs work he will advise and I leave it with him.
Last visit was a check of my competition rifle bore and he said it has a touch of carbon in the throat, buy some Upper Engine Cleaner leave it in the sun and give it a soak whilst warm/hot. No charge.
He is the consultant Gunsmith for the NRAA and shoots Fullbore/F-Class. I'm a Benchrest Shooter and he knows I have a few skills he doesn't. Great bloke and certainly worth the near 3 hours it takes me to visit including the hour we talk for over things.
Sorry Apollo, but you seem to be contracting yourself.
You say "don't bother unless you have experience" then say that the only way to get the experience is by bothering to do so.
Can't have it both ways.
scoot wrote:Congratulations
I prefer to save time by using my "not worth a cent" scope to see carbon that's easily removed. Save the gunsmith "favours" for when I might really need them.
bigrich wrote:the bore tech eliminator is the solvent recommended by my local GS , but the copper remover is all he had in stock . had a good chat with my smith on the phone after my last post . i'm going to get him to bore scope it , it might reveal something . he also suggested maybe this barrel might settle down after some more rounds , and it's not uncommon for a barrel from a qaulity maker to behave like this sometimes apparently . i'll see how she goes . accuracy is good , and doesn't drop off .