300 Win Mag Loads

[horseman2]

Getting a Remington 700 Sendero in 300 Win Mag and am looking for loads using 180 grains for a hunting round, and also 190 grain Sierra MK when I get more serious.

I checked the Nosler book and have a starting point with H4831 SC, and Reloader22. The other powders on hand are H4350, IMR4350, IMR7827,
IMR4350, IMR 4831 and H414 as far as slow powders go.

 

[curly top]

I use the nosler book too, IMR 4831 with 200 gr. spitzer partition. I would have to check but I think it was 72 gr. of IMR 4831.
Love my group with my Browning a bolt. Even better with the 200's compared to the 180's.
C/T

 

[JasonYuke]

I like the Nosler book as well, and have found in several 300 wm rifles that RL-22 has come out the winner. Infact for that same rifle but they are all different.

 

[joe-nwt]

I've always had the best results with IMR4831 for 180's and IMR4350 for lighter bullets.

 

[horseman2]

I was given a load of 76 gr of H4831 but it appears higher than any book figure

 

[Bob Murray]

go with what the book says. 75.5 grns of rl22 and a 180 accubond. my mark v will shoot about 1/2 " at a 100, no kidding

 

[BigUglyMan]

73 gr with IMR 4831 and 180 NPT is safe in my rifle. RL22 might also be worth tryign with the heavier bullets like the SMK or the 200/210 Bergers. That's my plan anyways.

 

[Moosetracker]

My best load is 80.5 grs H-1000 with Nosler Accubonds 200grs. A couple of weeks ago I shot a bull moose at 504 yds with this load. The bullet blew off the top part of the hart and exited the left shoulder.

I'm using a Savage 112BVSS in 300 WM with Near base, IOR rings and a Bushnell 6500 2.3-16x42mm. I figure I'm good to 700 yds with moose.

 

[cs1973]

For most 300 win mag rifles I have loaded for I got best results with 69gr IMR4831, cci mag primer and 180gr TSX,hornady sp's, Grand Slams, Partitions and accubonds. All of the rifles produced excellent sub-moa groups and decent speeds (2860-2985fps depending on pipelength).

 

[saskcop]

H4831 works well, but I love Hornady 190 grain BTSP loaded on top of a near max load of H1000. Really flies and is very accurate.

 

[horseman2]

She arrived today so I thank everyone for their help.