I have rarely used bore snakes. Based on that minimal experience, I think they are OK, but I didn't become a "convert."

Rods, brushes, jags, and patches are my routine. I have used the whole gamut of products and, for the last several years, have stuck with the KG-1/KG-2/KG-12 products: https://shop.kgcoatings.com/kg/product-category/cleaning/

Since I began using that product line, I have not had to resort to Butch's Bore Shine for copper removal.

Remember, I am a reprobate about gun cleaning, so take my advice with a grain of lead salt. When I used to shoot 1,000-4000 rds/month I would go months between cleaning marathons. In one sense that is a tribute to the reliability of my preferred competition guns. 

...what are your thoughts... on boresnakes?

I have a few in .30 cal, but have never used them. 

From what I recall reading, though... make sure that whatever cord is attached to the snake, that it is of good manufacture; I've read threads on other boards where the cord broke with the snake in the bore, and they're not easy to get out. 

I will never come close to shooting your volume of ammo! If I did, I would probably use the traditional approach. I do like using patches as a finishing touch though. I found also not all boresnakes are equal. Pays not to cheap out.

3-Gun proficiency requires that kind of dedication. Our local 3-Gun group does some weird (dare I say, "unrealistic"?) courses of fire, so weird (like the spinning mini-ferris wheel with clay pigeons as targets) that I stopped competing in 3-Gun, but we have a really amazing PTR (Precision Tactical Rifle) group. We have at least 5 nationally ranked and sponsored shooters, so I am not the "big frog" in that pond. Your jaw would drop watching them—mine does every time. I am competent, but not at all in their league.

PTR does not typically require the same volume of fire (whether in practice or competition), so I am probably burning about half a case per month.

BTW, if you have any small or recoil shy women in your family, these are a solid deal at $229:
https://aimsurplus.com/beretta-model-81-32-auto-pistol-standard-grade/
They are only .32 ACP, sort of an anemic cartridge, but Speer Gold Dot (for expansion) or Buffalo Bore +P hard cast flat nose (for penetration) are reasonable choices for personal defense.

They are available elsewhere for $199, but appear to be of inferior cosmetic condition.  For an extra $30 why not get a nicer looking piece for the ladies you love?

Defense using a gun results in fewer injuries to the defender than any other method of defense, running away, or submitting and doing nothing.…

Except in the case of defense against a bear attack. Bear spray has higher rate of non-injury than firearms.

I'm going with the BIG 13.2mmSR TuF Mauser… https://www.firearmsnews.com/editorial/first-antitank-rifle-cartridge-132mm-tuf/370681

Thanks, but after watching the below, I think I'll stick with the 50 BMG designed by John Moses Browning. 

^--- Does it come with its own MRAP?

Shoot, I still even had the proper opportunity to give my night vision monocular a proper shakedown.   Havent won the lottery either but we be working on it

Thermal imaging equipment would be another cat's pyjamas. I read we have a feral hog problem up here on the Canadian prairies. No need to butt in on the Texas eradication. Lots of good pork brisket to be had, if dem wild oinkers are not infested with parasites and the like.