Quote Originally Posted by junkyard dog View Post
A Hugh thank-you to everyone for taking the time to reply to this thread I considered the cast lead and Gm3 route but decided against it as my No4 has the five grooved barrel and could be susceptible to leading. To Big Duncs thank-you for your concern sir but I can assure you I am probably the most anal person when it comes to reloading
My No.4 Mk1 has a five groove barrel and I pretty much only shoot powder coated cast through it, I did have issues with leading until I got the lubes right, and in the case of the powder coating, allowing it to harden for a week or so after coating before shooting.

16gn of 2400 gives a lovely soft shooting round that you could send down range all day, a box of 50 costs about the same as a semi decent box of .22lr and the brass lasts forever.