Good day Bruce Moulds, NurseFet and others,
Even though I am convinced (after a lifetime of shade tree experimenting with many rifles/calibers) that, the tedious and time consuming “breaking in” of rifle barrels is not important whatsoever for typical hunting rifles, I do totally agree with Bruce Moulds on cleaning products.
Hoppe’s has been a standard forever and I’ve helped keep the factory in business.
However, be advised that the fumes are VERY poisonous so, I suggest only using it outdoors, never indoors, never ever.
Likewise, both JB and Sweet’s have been favorites of mine for a long time.
They are superior to Hoppe’s in every way.
Plus, JB Bore Compound is very economical as a little goes a loooong way, because “a little dab will do ya”.
And for airplane travel, it is a paste / not a liquid and as such, acceptable to fly with in your luggage.
However in a pinch at home, I’ve also had very good results with Ronson brand lighter fluid (!), as well as Kerosene and I’ve even used diesel from any fuel station, again with very good results (except that diesle stinks for a long time).
Ronson lighter fluid is so thoroughly filtered that, the almost not detectable smell is gone very quickly after use.
(Just don’t try to fly with it in your luggage).
All three are pretty close to the same chemical composition, just different levels of filtration.
Worth mentioning is that, during the past 20 or more years now, I’ve been using over the counter Vaseline on gun metal., inside and out.
I began using it as a rust inhibitor on the outside of guns.
For a rust blued or bead blasted finish (both favorite gun metal finishes of mine), I have found nothing better to keep mean old Mr. Rust away than Vaseline, here in this Coastal Alaska damp climate.
If I am ever blessed to hunt bongo in West / Central African jungle conditions, definitely I will have a small jar of Vaseline in my duffel.
(Holland & Holland recommends Vaseline as a rust inhibitor for their super expensive shotguns and rifles).
Vaseline is another “airline acceptable” product.
Plus, it does wonders for chapped skin, in desert and / or Arctic conditions as well.
Anyway, I discovered that Vaseline also loosens bore fouling, if run through on a patch and left over night or longer, then scrubbed out with any of the above mentioned products, including fuel pump grade Diesel fuel.
That said, JB Bore Compound or Sweet’s requires less physical effort than diesel or Kerosene and is superior in every way.
I suspect that even gasoline would work fairly well to remove Vaseline.
But, gasoline will take a long time to quit giving off poisonous fumes afterward.
One of my life-long friends swears by using 30 weight, detergent motor oil as a bore cleaner but, I’ve not tried it.
Whereas I don’t agree that the tedium of “breaking in” a rifle barrel has any functional advantage, as it pertains to typical hunting rifles, I do indeed agree 100% with Bruce Moulds that, you absolutely should run a dry patch through the bore, prior to firing a shot, in order to remove oil / grease, before firing your rifle.
Too much oil / grease in the bore can spike chamber pressure, due to the added thickness in there from the oil / grease.
Stay safe and happy hunting,
Paul.