Art,
Sorry to hear of this. I once left a BH209 fouled breech plug sit with a liberal ammount Hoppes #9 on it for a couple days. The combination of the hard carbon and the Hoppes actually etched into the breech plug, but only where there was heavy deposits. I have seen Browning shotgun barrels that were left laying on their side with Hoppes in them before that had this same type of etching/corrosion. It actually ate the metal away where the Hoppes pooled up. These shotgun barrels were fired with standard smokeless loads in them.
Another thing I have noticed after shooting several jugs of BH209 in several rifles and breech plug designs, is if you clean right away while the bore is still warm, it only takes a couple minutes. If you let the fouling sit on there for any extended ammount of time the breech end of the barrel will have hard carbon deposits, presumably from the 209 primers, that can be much more difficult to remove. This may require a bore brush with a solvent dampened patch, and some elbow grease. This does vary from rifles/breech plug designs, and type of 209 primers used.
I am sure we don't have all the answers yet, but thanks for passing on the information. Clean 'em if you shoot'em.
Sabotloader,
The information you are providing in the pictures has been printed on the labels since last year, it is nothing new, at least to me. Sure it is different from the first bottles, but has been there for a year.
Just want people to be aware this is not a new revelation, they have had that same label for a year now. Wish I had a camera here to take some pics, but my daughter has it at college. Oh, that's right, it is her camera!
Last year I shot a buck on opening day, reloaded and left it for two weeks, fired it off with no signs of any corrosion. I have also left fired rifles for several days with no problems. My rifles are SS, so that might offer a bit of insurance.
Bottom line for me: If I use any conicals with lubed (water-based)grooves, I clean up as soon as possible. If the humidity is high, I clean up as soon as possible. If I shoot 209 primers with reduced charges, anything other than Fed 209A, CCI 209M, Win W209, Rem STS, I clean up as soon as possible.
IMO, the primers used could be a contributing factor, the muzzleloading primers will work in some rifles, but you do not get as good of a burn with them. The better the burn, the less residue left in the bore to collect or trap any moisture. If you want to test this theory, just shoot BH209 with a .25 ACP or #11 igniton rifle, you will see what I mean. The lower charged ML primer to a lesser extent, but the same principles apply. If your flame channel is plugged, this makes for much reduced heat and flame getting to the powder, and I feel is also a contributor to poor burn. The very loose bullet/sabot combinations also contribute to a poor burn of the powder. I have had several VERY loose fitting saboted bullets fire without hesitation, however the velocities tell me that I may not be getting a complete burn using heavy charges with light bullets.
I have shot cases of BH209 in 9 different rifles and 1 shotgun, 3 of the rifles with several different breech plugs, 1 rifle with 5 different (styles/types) breech plugs using 11 different 209 primers, #11 caps, .25 ACP plug with standard and magnum primers. I think I have seen a lot more than the average, but I know I don't have all the answers either.
