I have a question re: a hunting load but first a bit of background:
I'm shooting a Classic Remington 700 .300 Win Mag beautifully redone by APA. Broughton 1:11 barrel, Jewel trigger, blueprinted, bedded, no brake. The chamber is nicely tight, brass growing only .003 on firing. Using load data from before the rebuild, and available components I loaded a "practice" round and fell into an awesome antelope/deer load. Hornady case, 150g Nosler AB, 76.0g A3100, Win mag primer, OAL=3.426, jumping .047 to the lands, 3260fps! This load is shooting consistent 1/2 minute at 500 yds. off the bipod.
So here's the question: I want a moose/elk load using 200g Nosler Partitions. As A3100 is no longer manufactured I've decided on H4831. Working up I'm at 74.0g, muzzle velocity=2910fps, no pressure signs at all. This load is already above max for all my books except Lyman which max is 74.0g. As I tweak for accuracy (already good) what opinions are there regarding increasing speed if accuracy goes that way? I know some old data for 4831 was greater than 74g.
This load is using Remington brass & Win LRM primers
I'm shooting a Classic Remington 700 .300 Win Mag beautifully redone by APA. Broughton 1:11 barrel, Jewel trigger, blueprinted, bedded, no brake. The chamber is nicely tight, brass growing only .003 on firing. Using load data from before the rebuild, and available components I loaded a "practice" round and fell into an awesome antelope/deer load. Hornady case, 150g Nosler AB, 76.0g A3100, Win mag primer, OAL=3.426, jumping .047 to the lands, 3260fps! This load is shooting consistent 1/2 minute at 500 yds. off the bipod.
So here's the question: I want a moose/elk load using 200g Nosler Partitions. As A3100 is no longer manufactured I've decided on H4831. Working up I'm at 74.0g, muzzle velocity=2910fps, no pressure signs at all. This load is already above max for all my books except Lyman which max is 74.0g. As I tweak for accuracy (already good) what opinions are there regarding increasing speed if accuracy goes that way? I know some old data for 4831 was greater than 74g.
This load is using Remington brass & Win LRM primers