I recently asked Glenn if he was still using a 3-1 BW/ATF mix for lube and he wrote me an excellent email back I thought I'd share. I mixed a batch up but haven't had a chance to try it against the Emmerts I'm using now but it's in my plans. His reply is below.
"Pat, yes, I still use it. Norm Duesterhoeft and Steve Hurst both mentioned it some years ago, and as I was looking for a replacement for M&N, and it was simple, I tried it. I think it’s a little better than M&N, doesn't take a clean bore long to settle down. Like sometimes the fouler will be in the group. That's after cleaning with Shooter's Choice, different cleaners will probably respond differently. Ed's Red should be an excellent cleaner for it since it contains ATF.
I've never made any Ed's Red, but made a "lite" version of just ATF and Mineral Spirits 50/50. I've been using it to clean 22 RFs and am happy with it, first shot often being right there (I always leave the bore wet after cleaning, even if shooting right away). I should try it in my CF CB rifles, but haven't yet.
The 3-1 mix is pretty soft, just like M&N, so I've stayed with it. I think Ed Harris goes 4-1. The mix doesn't matter, whatever firmness you like.
The only other lube I use is LBT. I think LBT is better at preventing leading, but can’t really say for sure. It’s certainly best in balls-to-the-wall loads! I haven’t used BW/ATF over about 1950 fps, but it was good there in the 270, but the 270 has never leaded with anything. Like any CB load, bullet fit is key, and with good bullet fit I haven’t had leading issues with BW/ATF.
I was using BW/ATF in Bullseye loads shooting indoors, and someone asked me what lube I was using. After I told him he said, “No wonder it smells like a hot transmission.”
I was talking with Bud Hyett at the ’24 NT and mentioned M&N. He said it was toilet rings made in Mexico."