Hey Guys I made one the the DIY electro cleaners and it works great.
Had a 99 Savage in 308 that went to spraying bullets everywhere after 2 boxes of Winchester Ballistic Silvertips. Thought the scope had shot craps but no! Left the cleaner in the 99 for 30 minutes and the worst mess of black crap came out on the bronze brush and patches, you wouldn't believe. Got some cheap Remington 150gr and back to 2 inch groups all day. Made my cleaner out of an old D cell flashlight and a 1/8" steel rod and some heat shrink wire insulators. The solution is 50/50 ammonia and water. Always wrap some paper towel or cloth around the muzzle to absorb the foaming that starts as soon as you turn the thing on. The hardest thing to find is a good chamber plug. I been using corks. Anybody use something better?