I´ve got a distinct feeling that all that lube I used was only adding to the final crud. Bullets had three grease grooves AND a dab of grease under the bullet. All were heavily greased before insertion. Have now got some nitro BP imitation powder to try out. So, I´ll try that when I get my bullet mould. Next to the 100 metre range´ll be the M71 Mauser. Have set up the Vo test rig in the workshop/garage planned for New Years´ Eve during the fireworks display.