Went to the range again this past weekend and finally, after numerous powders, charges and other factors, have got what I feel is a good accurate load for my 300 WSM. I'll be hunting elk exclusively in SW Colorado this year. I say exclusively because my original intent was to get drawn for a Mule Deer Buck AND also hunt for Bull Elk during the state's 2nd season rifle hunt. I originally was going to use my Weatherby Vanguard 270 with a 150 gr partition bullet. None of my hunting party got drawn for deer so we opted to draw a leftover cow elk tag and/or bull elk tag which we can buy over the counter. Anyway, back to the 300 WSM. I picked up some 180 gr Speer Grand Slam bullets (100) on closeout of our local Sportman's Warehouse. I do have 180 gr Hornandy SST's, CT Ballistic Silvertips in 180 gr and found some Sierra BTSP in 190 gr. I also have some 180 gr Barnes XXX and some Nosler E-Tips also in 190 gr. I came across a few of the old Winchester Silvertips in a 180 gr at a yard sale and picked them up. Only problem is, there are only 10 rds. What shall I use when hunting this year? The Grand Slams seem to be all over the paper and don't seem to group well at the range however, I hear they have excellent downrange punch. The CT's & SST's are very accurate. A few years seasons ago, I shot an elk with a CT in a 180 gr. It was a parting shot thru the leftside which punctured the lungs. It took awhile for the animal to go down but he finally did. I never recovered the bullet. There was no exit wound. Never shot any animal with either the Barnes or the E-Tips so I have nothing to compare them to except to say that they are accurate. Any thoughts or experience with these bullets? Thanks.