KAMIKAZE BOB
Member
I have been shooting since 1972 when I joined the military (during Viet Nam), and reloading since 1981 when I got out. I've been doing precision long range shooting, reloading, and teaching precision reloading and long range shooting since 2001. The misconception about cleaning the brass is not about making it look pretty. It's important to get any unburned powder out of the inside, powder residue buildup inside the case, and any buildup inside the primer pocket and flash hole. These issues can cause increased pressure in the case and incomplete powder ignition when the flash hole is slightly clogged at the web (base) or reduced in size (flash hole residue buildup).
The method of cleaning is not important as long as the case gets thoroughly cleaned of debris. It all depends on how a person wants to spend his/her time cleaning. I prefer the STM SS pin tumbler with 3/4 filled with water, a few Tbsp of Dawn Dish Soap and a tsp of Lemi-Shine polish. I let it run overnight, and in the morning, it looks like new brass and thoroughly cleaned. The Walnut shell (or similar media) cleaning method leaves a powdery residue all over the casing which requires additional cleaning or wiping off (ever so slight film and you can't see it; but it's there). The wet tumbling does not leave a residue. The extra step is in drying the brass, where I use a dehydrator like a Lyman Case Dryer. I put 60-70 rds of 50BMG brass in the dryer and set the timer for 3hrs. When done, it's dry inside and out. Works great!.
Just my 2 cents (worth less in today's money).
The method of cleaning is not important as long as the case gets thoroughly cleaned of debris. It all depends on how a person wants to spend his/her time cleaning. I prefer the STM SS pin tumbler with 3/4 filled with water, a few Tbsp of Dawn Dish Soap and a tsp of Lemi-Shine polish. I let it run overnight, and in the morning, it looks like new brass and thoroughly cleaned. The Walnut shell (or similar media) cleaning method leaves a powdery residue all over the casing which requires additional cleaning or wiping off (ever so slight film and you can't see it; but it's there). The wet tumbling does not leave a residue. The extra step is in drying the brass, where I use a dehydrator like a Lyman Case Dryer. I put 60-70 rds of 50BMG brass in the dryer and set the timer for 3hrs. When done, it's dry inside and out. Works great!.
Just my 2 cents (worth less in today's money).