UncleLoodis
New member
Greetings All,
I want to load some 300 Win Mag. I have H4350 powder, and 180 grain Sierra Matchking Hollow Point Boat Tail bullets. I mention IMR-4350 below because I've heard that IMR-4350 and H4350 are almost identical. I ordered IMR-4350 but a vendor sent me H4350 instead, so that's what I have.
My Lyman's manual (49th edition) doesn't give load data for H4350, but it does give load data for IMR-4350 (180 grain bullet). Min load is 65 grains, max load is 72.5 grains. COAL is 3.340"
Hodgdon's web site load data for H4350 for a 180 grain bullet is 62.1/63 grains minimum (depends on bullet type), 66.8/67 grains max.
Obviously, if I use Lyman's IMR-4350 data at max 72.5 grains, it would exceed Hodgdon's H4350 max load data of 67 grains.
Regardless--does anyone have any accurate (that you've tried yourself) 300 Win Mag load data for H4350 with Sierra 180 grain HPBT?
Thanks in advance,
Uncle Loodis
I want to load some 300 Win Mag. I have H4350 powder, and 180 grain Sierra Matchking Hollow Point Boat Tail bullets. I mention IMR-4350 below because I've heard that IMR-4350 and H4350 are almost identical. I ordered IMR-4350 but a vendor sent me H4350 instead, so that's what I have.
My Lyman's manual (49th edition) doesn't give load data for H4350, but it does give load data for IMR-4350 (180 grain bullet). Min load is 65 grains, max load is 72.5 grains. COAL is 3.340"
Hodgdon's web site load data for H4350 for a 180 grain bullet is 62.1/63 grains minimum (depends on bullet type), 66.8/67 grains max.
Obviously, if I use Lyman's IMR-4350 data at max 72.5 grains, it would exceed Hodgdon's H4350 max load data of 67 grains.
Regardless--does anyone have any accurate (that you've tried yourself) 300 Win Mag load data for H4350 with Sierra 180 grain HPBT?
Thanks in advance,
Uncle Loodis