Looking to try some hammers in my Browning A-Bolt 300 RUM with 1:10 twist barrel. I'm restricted on COAL at 3.60 due to magazine. Don't want to single feed. Currently shooting Retumbo, 200 grain accubonds and Nosler Brass at 3.60" with 1" groups at 100. I've shot a lot of animals with this load but looking to try ADG brass, a new projectile and N570. Picked up some 230 Berger Hybrids but are just too dang long. Any thoughts?