I just started reloading and I am wanting to load the 150 SST Hornady bullets using IMR 4350. Has anybody used this combo and if so how many grains of 4350 for a safe load.

There isn't much info on the 4350 with the lighter 150 gr Hornady, I'm thinking it would be close to the 150 Nosler Ballistic Tip.

I use 4831sc myself, I have alot of this. But 150gr. bullet weight loading will work,BUT make sure the load listed shows H4350 or IMR4350 they ARE different. (yes I did make that mistake) luckly found out before I pulled the trigger. Spent time with my bullet puller.

you can pull up reloading data on hornady's web site to suit your needs
and its free!!!

Will it work, yes, but 4350 is too slow to optimize performance with the 308. With 150gr bullets you should find a sweet spot between 46 and 47 grains of Varget.

Thanks, I went and got Varget this morning and loaded starting out at 42.5

I'll save the 4350 for some larger bullets

MY 155 scenar load is 46.6 Vgt, 2800 fps from a 20". I get a half inch grp out of this consistently. You should be close to this with a 150. Work up with caution.

what type of barrel are you running on the 20"?

Factory LTR BBl.