Yes Travlin. I did slug the bore and it is .451" groove dia. in my Marlin 1894. My bullets are sized to .452". I usually like my bullets sized to .002" over the bore dia. My alloy is 100% COWW with sometimes 1%tin added and either air cooled or quenched. Sometimes I cast with 50/50 ( coww/pure) and quench. I do see some chatter in the grooves for about the first 4 or so inches from the chamber with the use of my bore scope but those cameras magnify about 15 % more then actual size so it just makes things look worse then they are. The rest of the bore looks good but not quite the equal of my Henry 44 magnum. However, the Marlin is shooting quite accurately. I have a 4.5 power scope on the rifle and at 75 yards, if I do my part I am getting anywhere from 3/4" to 1-3.4" for 5 shot groups. Any further then that then the cataract forming on my right eye interferes with my seeing the target clearly. I have to use a lot of elbow grease to get all the lead out and it is time consuming so I am merely looking for means to hurry the process while doing a good job at removing the lead. Chor-Boy is my friend along with my mix of 50/50 Hoppe's/kroil but it still remains slow.Travlin wrote: ↑Mon Aug 10, 2020 12:21 amI have shot cast bullets , mostly my own , in several calibers of rifle and handgun starting in 1969.If you are getting a lot of leading when you shoot , I would think that there is something amiss. It could be the alloy , or more then likely what the bullets are sized to.Have you slugged the bore?
Thank you for your interest.