best powder for 300 win mag and 180grn bullets

[codyadams]

H1000 is a temp stable powder so that should help if the elk hunt is in cold temps. I think your biggest issue will be the altitude affecting your dope data. You will be going from SC altitudes to probably 5~6000 feet or more in elevation. It will affect your drops.

Absolutely. Make sure your ballistic solution can account for it and is versatile, I live at 6600 ft elevation and hunt at 8000 to 10,000+ ft, and there is enough difference that it needs to be accounted for.

 

[alaska]

74.0 of IMR 4831
180 Gr Nosler AB or BT
WW Brass
WLR primer (not Magnum)
Great load give it another try with my data in 300 WM.

 

[stinkyduck13]

In my 300 win, 11 twist, I load imr7828, mag length at 2930 fps. 195 eldm. shot them out to 730 yards.

 

[Allen Kitts]

I am using H-1000 and 181 Hammers in my 300 Win Mag and they shoot fantastic. 78.0 Grains of Powder and just under 3100 FPS. Unfortunately I have too many rifles so it doesn't get used that often but I killed a couple of hogs with it and it was bang flop. they shoot right at 1/2 MOA at 300 yards. That's as far as I have shot any groups with them.

 

[Dmagna]

I hope after 6 years they figured it out

 

[alaska]

Another great load for 300 WM
H4831 @ 76.0 w 200gr Nosler Part
78.0 w 180gr Nosler Part
WW Case CCI 250 primers

 

[Sealesniper]

H1000 has been my go to for good velocity and repeatable accuracy.

 

[Reelamin]

I have had great success with any 4350, 4831, R22, H1000, Magnum, and Retumbo. Best so far for velocity and accuracy is H1000, with R22 a close second.

 

[stinkyduck13]

All depends what's available for powder. Your bullet choice and of course what twist ya got. Annd the old loads were developed with non magnum primers.

 

[Joe6pack]

Give Ramshot Magnum a try, i found better velocity and accuracy with it using 180 ABs. H1000, RL22, RL19, H4831 and 7828ssc just didnt work for me. Obtained a velocity of 3,100fps and groups that were 3/4" at 100 and 2-1/2 at 300 were the norm. It was consistent in 50Deg and 20Deg temps.

 

[Hudge76]

My favorite powders for 180's in my .300 WM are H1000 and Magnum. I mainly use LR magnum primers and brand I have not noticed mattered enough to care.

 

[SkunkedAgain]

Shooting a Tikka T3Lite and working up loads for the Barnes LRX 175gr. I found a flat spot at 74.4 gr of 7828ssc, but velocity was 2950fps. Using win bras and WLRM. For info on guys trying to get a load on the LRXs since the 7828 isn't listed on Barnes info.

 

[VinceMule]

I shot two loads in my 300 WM Sendero's.

71g of IMR 4350 with 180g Sierra btsp

75-75.5g of R#22 with 180g Nosler ballistic tip

These are warm loads in Rem brass, work up to them in your rifle.

 

[FEENIX]

I hope after 6 years they figured it out

L L!