I just finished working up a hand load for my Ruger 338 Win Mag.  I used RL 19 powder and Hornady 225 SST bullets, also Fed Large Mag Primers. My rifle is new so I had no problem working up to the maximum charge which was listed at 78 grs. There were no signs of excessive pressure and could try to go a little higher. My rifle liked 77 grs, 3 shots in one hole.  Maybe it was luck but that is what I think is best for now.  As always, start load development 10% lower and work up to maximum of 78 grs.

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I reloaded 180 grs for the 300 win mag years ago and had good results with H4831. It was accurate and a long range thumper. Wish I had not sold that rifle, it was a Browning BBR ang shot well. I remember at the range people would pack up their gear and move when I would shoot it.Cheers.

I reloaded 180 grs for the 300 win mag years ago and had good results with H4831. It was accurate and a long range thumper. Wish I had not sold that rifle, it was a Browning BBR ang shot well. I remember at the range people would pack up their gear and move when I would shoot it.Cheers.

i just bought a browning bbr in 300 win mag...  love it... its a tack driver... it was built in 1980 the same year i was born