7 RM 160 NAB w/H4831sc load data

[MO Whitetails]

Anyone have a more recent Hogdon manual to check this load. My manual is 40 years old. I worked up a sub .5 moa round for elk hunting in my Remington 700 BDL 7mm RM using H4831sc which my bedded, floated barrel w/oem walnut stock, loves for 140 and 150 grain Nosler partitions, with 63.7 and 64.7 grains respectively producing sub .5moa rounds. For the Nosler 160 AB I started at 63 grains working up until I found my best load at 65.5 grains H4831sc at 3.290 COAL. My Hogdon manual frim the 1980's shows 66.0 grains⁰ to be max load and I see no pressure signs. Their web site data lists lighter max loads but Hogdon also states the H4831sc has never changed, still same other than shorter length powder. I full length resize lightly pushing the shoulder back to fit my chamber. Winchester brass with Rem mag primers. The load worked well on my unit 34 New Mexico Bull, one and done. Quartering towards me double lunged at 130 yds. Ran 50 yds. With my November whitetail buck, i haveplenty of meat in the freezer until next season. Life is good! Sierra 160 spitzer boat tails shot even better with sub .3 moa. in the same load.

 

[Sadie]

What ever the book says your brass determines maximum powder charge. Sounds like you are doing very well with what you ve

 

[Sadie]

Sounds like you are doing very well with what you are using.

 

[NWBLKTAIL]

Just for reference you can hop on their website and look at load data, they listed 65 grain max for a 168 ABLR, but only had the IMR variant listed for 160 accubond in 7 RM
I have a recent load book from them as well and referenced that with what they had listed online and it checks out.
Nice shooting enjoy the full freezer

 

[N2TRKYS]

What’s your velocity with H4831SC and 160ABs?

 

[MO Whitetails]

What’s your velocity with H4831SC and 160ABs?

I do not have a chronograph so only a SWAG or Scientific Wild Ass Guess. Judging from ballistics through shooting various distances 100-300 yds likely around 2975-2980fps. I load to full SAAMI cartridge length, resize a tad under full length to bump the shoulder back, as I could not care less about speed or its variance. I trim brass every reload to specs. Never going to shoot over 500 yards, BC and speed matters very little for these shots.

 

[MO Whitetails]

Just for reference you can hop on their website and look at load data, they listed 65 grain max for a 168 ABLR, but only had the IMR variant listed for 160 accubond in 7 RM
I have a recent load book from them as well and referenced that with what they had listed online and it checks out.
Nice shooting enjoy the full freezer

I looked at their website before working up this load. Hogdon Reloading Center lists a lighter max load with H4831 than my old Hogdon manual by 3 grains for 160 grain NPT, but their pressure is way below other max loads listed. CYA! I see no pressure signs, even up to my maximum test loads of 66.1 grains. Hogdon says the powder is exactly the same since first sold. They only changed how they measure pressure, using PSI instead of CUP units. This gun loves H4831sc or regular for anything from 140 to 175 grain partitions. Sierra GK's are incredibly accurate, but I wanted a stouter bullet for my Elk load.