Looking for new loads for a buddies 300 win mag I load for. It is a Weatherby Vanguard SS 300 win mag. Gun shoots factory loads well...my friend mainly hunts elk in the Pacific NW Wa St on the olympic peninsula. Most shots are well under 200 yds.

Good reason to use my favorite load:

180 Nosler partition
70 gr. IMR 4350
CCI 250 primer
Remington case

Another my rifle loves:

200 gr. Nosler partition
68 gr. IMR 4350
CCI 250 primer
Remington case

Both loads produce less than moa. accuracy in my Ruger M77 MKII and are max listed loads in the nosler reloading manual #4.

180 nosler partition p.p.
69.5 gr. imr 4350
cci 250 primer
federal case

Took my 1st elk with this load.
165 nosler partition
71 gr. imr 4350
fed 215 primer
federal case.

'22 168A-Max/TSX melding..............

Rel 22 with the Nosler 180 gr BT or Acubond.


180 Nosler Alliant RL-22 73.5 3,023 max load

180 Nosler Alliant RL-22 71.5 2,928 starting load

83 grains of H 1000..

+1, although my rifle has a longer throat, and can take heavier loads, those are excellent. edit to add, I do use Federal 215 primers in it.

And Lapua brass

R-22 (75grs for my rifle) and either 180 TSX's or NAB's. I use Federal brass and Federal Gold Medal Match mag primers, out of my Rem Sendero chrony's at 3150fps with super accuracy. I've had good luck with H 4831 also.

180 AB, 76 gr h4831, fed gm brass and fed gm 215 primers 3100fps

75.5g of R#22, fed 215, 180g what ever. Mine shot the 180g
Win soft point with the best accuracy, trajectory of a 45/70.

72.5 gr IMR 4831, CCI 250, 180 gr Speer PSP, 2960 fps

180 gr Barnes TSX dressed in moly
75.5 gr RL 22 IIRC
Fed 215

73 gr of IMR4350 with a Hornady 180 gr BTSP. Listed as the middle load in an old Speer manual, and shoots 3140 fps, sub inch out of my M1000 Eclipse A Bolt.

Mine likes 69.0 gr of IMR4350 and a 180 gr Accubond. Shoots a half inch if I do my part, 70 grains opens it up a bit.

75/R22/180NP/Fed215

I will echo what others said - around 75gr of RL22 has always given great velocity & accuracy with various bullets across a few different .300 Win Mags for me. I typically get around 3050 +/- 50 fps with the 75/RL22 load. Around 78-80 gr of Ramshot Magnum works with 200 Partitions as well for 2850-2900 fps and has been super accurate.

Lou

180 grain bullet, 75.5 grains reloader 22.

My Rem 700SPS with a 26" barrel likes:

Win. Brass
Fed 215
76gr. RL-22
180gr. Accubond....3125fps, 3 shots around 1". My Rem mag box is long so I have this load OAL about .060" longer than factory length. The bullet is not touching the lands.

OR

Win Brass
Win WLRM
71gr. IMR-4350
180gr. Hornady SP.....3080fps, 3 shots just under MOA. The bullet in this load is seated to the bottom of the cannelure.

Both loads have killed elk cleanly and I wouldn't hesitate to use either again. I have gone to the dark side and now use:

Win. Brass
Fed. 215
78gr. RL-22
168gr. TSX....3250fps, 3 shot groups = 3/4" with boring regularity. Seated to the bottom of the top groove.

I know it's not a 180gr. load but it works so damn good I just had to share it!

All loads shot over a Shootin Chrony multiple times to verify velocities.

Elk Country

curious if anyone has tried Reloader 25 with 180's ?

yep, too slow. Ain't much that you can't do with 74-76 gr of 22 and a 180 in a 300 winnie. If your rifle don't shoot that load, it's probably the rifle. I've used Sierra prohunters, NP's, and Hornady SP's. They all shoot in the 300's I have had.

absolutely. If a nice stiff load of RL-22 won't shoot 180gr bullets in your 300 Mag it's probably something wrong with the rifle.

Just don't develope the load in zero degree temps and then go hunt in the desert at 110deg. .....................DJ