I also have two Remington 700ML's. One is a 54 cal, loves about any thing you can stuff down the barrel and 100gr. T7. It also has the canadian 209 kit. Dirty but not like the Remington 209 a friend has.
Even with the 209 kit you have to disassemble the bolt and clean it every time.
I bought the tool at Gander Mountian.
My other one is a 50 cal. I bought it used a couple years ago. There was nothing on the market then that I liked. It likes about any thing stuffed down the muzzle with 80gr. T7.
I like to fondel my guns so takeing the time to clean them is no big deal.
Also Love how easy it was to adjust the trigger to 3 pounds with no creep. Course I had pratiac on my 8 center fire Remington 700's.
I have a friend with a Rugar 77/50 ML he likes really well too.
Al