welcome grantjhull, like has been mentioned different guns like different loads, @ 150 yrds any of them should be very accurate, if your grouping is really bad, (looks like it was shot with a scattergun) try another manufactor, even the same type/caliber/make of guns will not always like the same things, it's trial and error,as for bullets, a lot of folks really like the ballistic tip type bullets, i'm still shootingnosler partitions,in the the 7mm/.284 bullets i always liked the 139/140 gr. btw i reload and havent shot any "factory" ammo in quite a few days, but you'll find one you like, get busy, the 7mm-08 is a great caliber, mine is in a encore pistol w/15" barrel and fixed 4X leupold scope[:-], lots of fun, but people really look at you funny when you tell them your hunting with your pistol, and you pull this dude out.....

best of luck

ps minereb