Gentleman,
I will never go out hunting with a "clean" barrel. I will always shoot atleast one shot before heading out and leave the barrel just like that. I has been proven that clean barrels always produce a fouling shot which in most cases are left and high. My rifles get a oil patch through them once a year, and that is when our season ends in November. Any barrel needs that copper fouling to shoot accurately, so using solvent while you are out on safari is beyond me. After removing copper fouling from my rifles, it takes around 10 or so shots to get the rifle to start grouping again, where I feel I am comfortable with it.

Best Regards,
Marius Goosen

Plus one

I've never had the TSA say anything about gun oil in more than a dozen trips between the UK & US.
That includes the twice they have had me stand & watch as they went through every single article in both my hold & cabin luggage.

TSA: "What's this?" whilst holding up a can of Eezox.

Me: "Rifle cleaner."

TSA: "OK."

They were more interested in the Laphroaig & pain relief tablets.

I voted take 'em but rarely use 'em. But that doesn't tell the whole story. Because I always use 'em at least once on every safari - before casing my rifles and heading home.

When you need to clean, you generally really need to clean.

And I take a bore snake, for the sake of convenience, but also a U.S. military, segmented cleaning rod, for when a bore snake won't get the job done.

I also take screwdrivers and hex wrenches (generally, just a driver with multiple bits) that fit every screw on my rifles, including scope mounts and rings.

No telling when they might come in handy, and they certainly have.

Gun oil and Hoppe's fall under the heading of "flammable liquids" and therefore are forbidden on airplanes. Of course, with all the former Rhodes Scholars working for TSA, they probably don't understand the word "flammable".

The "appy" cleaned my rifle at the end of the 21 day safari. He used WD40. Works fine.

I boresnake every night, and do a wipedown. Don't take solvents. I do take some RIG grease and when done with the safari I put a good coat in the bores and any surfaces that rust easily. On my last safari which was very wet in March I greased them down at the end of the safari and the airlines lost them on my way home for about a week. Was very glad that I coated the rifles with a thin layer. If not with the humidity I am sure they would have had quite a bit of surface rust.

Took a 1 piece dewey rod, small bag of about 100 patches, a small bottle of Eezox, and a bore snake. The 1 piece rod , patces , and solvent were there in the event of rain or something getting in the bore. the bore snake was pulled into the bore every night just to the muzzle, and the blot closed. This kept the barrel sealed off to keep any assorted vermin out, and when the snake was removed in the morning the bore had been wiped.

from a PHs perspective its a bit of a different question ..i have always got two or three boresnakes , a good quality screwdriver set , collapsible cleaning rod and several different brushes and jags ...luckily i have only had to use it one time in ten or so safaris .. from a travelling hunters perspective a boresnake and oily rag in a ziplok bag ...