I have a .243AI, 1 in 8 twist, 26" barrel, that I plan on shooting 95 - 107 gr. bullets. I would like to get your recommendation on which powder to start with so I dont use up the life of the barrel in finding a good powder. I understand that what works in one gun may not work in another, but at least I would have an idea where to start. I am guessing this config would take advantage of slower powders like H4831, H1000, MagPro, etc. but would like to hear your recommendations.