i have been using my herters conditioner for years and it makes the mouths last a bit longer. i can get 5 or 6 loadings out of them.but i have limited the powder to 18.5 gr.of red dot..
reseacher, my dad used to load with 23 gr.of red dot and he was using a jc higgins pump that was plenty heave and i had a sinle barrel..man did those do my shoulder a job..nice and purple after a day of dove hunting ..tony