This is strictly non-scientific.After using Lee Wiggins tumble method on my 32-40 PB/BS with OK results , I decided to copy his efforts using Accurate Molds 190-J bullet, 184 gr of 3 lino 1 ww, gas checked and tapered in an Eagan taper die. All bullets are from the same lot.They were tumble lubed with a very small piece of White lable 2500+.
I shot four 5shot groups at 100 yds on a chilly windy day yesterday and my groups opened up to over 1" as opposed the the previous days sub moa groups with bullets lubed with the blue stuff in just the GC groove. Like I said, not scientific but worth a try. What was evident was the extremely clean barrel. One dry patch and all the black fouling was gone.
I also played with 2 things that are common topics. Weight sorting and crooked bases - crooked gas checks.The group with crooked GC's was 6.5 inches. The group that was 2 full grains spred was about the same as the tumble lubed groups. Still bigger than normal for me but not as opened up as I expected.
