IMR 4831 180gr 30 cal variations

AlaskaHunter

AlaskaHunter

Well-known member
Joined
Jan 20, 2017
Messages
1,884
Location
interior Alaska
I see variations in 300 H &H for IMR 4831 180gr

Nozler lists:
62 gr start, 66 gr MAX
https://load-data.nosler.com/load-data/300-holland-holland-magnum/

Hodgdon lists no starting load, 73 gr MAX
http://www.hodgdonreloading.com/data/rifle

My Nozler reloading manual number 3 lists
64 gr most start, 68 gr MAX

My SPEER manual 11 lists
66 gr start, 70 gr MAX

The range for MAX is 66 to 73 gr
The range for start is 62 to 66 gr
so SPEER start is MAX at nosler.com....

Should I start working up from 62 gr?
 
What ever manual you use, start low and work up. For all you know the max from any may be more than you want to push your rifle!
 
My pet load is 66 gr imr 4350 behind a 180 gr Nosler partition, thru a 26" barreled pre 64 Model 70
 
TSX is a pretty "slippery" bullet, IMO, which means it will take a few more grains than some other bullets. I'd be ok with starting higher than Nosler's numbers.

Have you looked at data specific to the TSX? That is going to be your best bet. But remember that lot to lot variations in can occur, so just because a certain load worked in the test rifle doesn't mean it will in yours.
 
Monolithic bullets usually take less powder than a lead bullet of the same grain. Call Barnes and ask them for the load data but 66gr would be a good starting point IMO.
 
cahunter805 said:
Monolithic bullets usually take less powder than a lead bullet of the same grain. Call Barnes and ask them for the load data but 66gr would be a good starting point IMO.
Click to expand...

Barnes will usually take more. Nosler E Tips, less.
 
Since the TSX isn't a Nosler bullet, I'd do as suggested and call Barnes. Nosler recommends a reduction from their standard load data when using the E-Tip. 62 grains would probably be safe as a start, but I'd check first. If you are looking for velocity and low pressures, check out Hammers. mtmuley
 
mtmuley said:
Since the TSX isn't a Nosler bullet, I'd do as suggested and call Barnes. Nosler recommends a reduction from their standard load data when using the E-Tip. 62 grains would probably be safe as a start, but I'd check first. If you are looking for velocity and low pressures, check out Hammers. mtmuley
Click to expand...

Thanks.
Every rifle is different so I'm starting with 62.0 gr.

I found it interesting that the published range was so great at a starting load (62.0 - 66.0 gr)
(For Winchester 300 mag the published starting load ranged by 1.0 gr
from the same sources for 180 gr bullet, IMR 4831 (69.0, 69.0, 69.0, 70.0)
 
Last edited:
Tjay said:
From Barnes #4 manual. 180 TSX/MRX

Starting load IMR4831 63.5

Max Load 68
Click to expand...

Thanks..I assume that is for 300 H & H and not 300 Win Mag?

Going out first thing in the morning tomorrow, starting at 64.0 up to 66.0 by 0.5 gr

Groupings so far have been ~.30 inch at 100 yards which will be fine for moose
(never shot one over 100 yards as I love to call)
 
With my rifle got high pressure signs at 65.5 gr so backed down to 64.0.
Shot my final 3 shots with shooting sticks and I'm happy with the grouping.

On to field shooting with sticks, pack, off-hand for a few sessions.
Moose hunt for me is Sept 15-25.
 
you might want to call Barnes and discuss powder bullet combination, i was just on their website and they do not list anything using IMR4831 for the 300 H&H, not to say you can't, but better to be safe than sorry.
 
You must log in or register to reply here.

Similar threads

S
Nosler .30-06 load development
Replies
3
Views
2K
cahunter805
cahunter805
J
Sierra Match HPBT 168gr in 30/06 300 mag?
Replies
3
Views
1K
WDSWIFT
W

Latest posts

Forum statistics

Threads
111,013
Messages
1,943,680
Members
34,963
Latest member
ElknTrout

Share this page

Back
Top