While at the range I finished the last 338 Lapua loads developed using the 250SMK and Retumbo. Before starting the next bit of load development for another powder I had put a few patches down the barrel using some Butch's Boreshine. The first two or so patches got most of the carbon fouling the next couple patches I noticed came out red. I've used Butch's numerous times on this gun (a Sako TRG42) and all the others and it's always come up blue never red. This was the first time I've ever seen this. It was also the first shot at using Retumbo. Could the red be the result of the Retumbo or could it be that it is just that time of the month for my TRG? Or just something else going on.
The cases were never fired Lapua cases (40 rounds fired). I was using a Lucas boreguide with a gunslick carbon fiber rod, brass jag and hoppe's patches. Last cleaning was done before starting with the Retumbo using the same components. Nothing like this was observed then.
The cases were never fired Lapua cases (40 rounds fired). I was using a Lucas boreguide with a gunslick carbon fiber rod, brass jag and hoppe's patches. Last cleaning was done before starting with the Retumbo using the same components. Nothing like this was observed then.
