Reed1911,
I have tried H4831,IMR4350 and some others but I don't remember which. Most of my loads have been shot with 100gr bullets. Hornady,Corlokt and Sierra. The one that I got to shoot the best was a 100gr Hornady RN. Less than 1" @100yds. Problems arose when loading more than 1 at a time. They won't feed from the mag. I haven't said before,but this is a Browning A-Bolt. It's been back twice.
It kinda worried me when the customer service person told me they were receiving a lot of complaints about rifles chambered for this round. The complaints included both Browning and Winchester. I asked if they would buy one for themselves and got a definite NO.
Now,please don't get me wrong on this rifle. I like the rifle. I like the concept of the WSSM. I've just about pulled out what little hair I have left. I've been reloading since back in the late 80's and have run into some real HUMDINGERS over the years. This one takes the cake.
I'll get my info together and give ya what I've tried. Maybe ya can help me come up with something that'll tickle Mama. She's just put this in the case and don't shoot it anymore.
Thanks
HWD