MOA Man,
Got to agree with many of the other posts here about SS109, tracers or the 62 grain Speer FMJ M855 equivelant. These are all fine as plinking loads, but don't expect any real accuracy from any of them. I've seen plenty of FMJs that would crack the MOA mark, some of them quite handily. But they're usually the exception, not the rule. MilSpec for most of these projectiles is something on the order of 3 MOA for US or NATO acceptance. Again, fine for plinking and spray & pray type scenarios, but not acceptable for any real accuracy shooting. Now when we get to the HPBT Match designs, that's a whole different story. If you've messed with the M262, you've no doubt seen the difference good bullets can make. I have a DMR built to AMU specs (I train active-duty SDM classes with AMU/CMP) and it's an incredibly accurate rifle. But that's dependant on feeding it good ammunition, in my case a 77 grain HPBT with a very similar load to the M262 you mentioned. Most of the HPBT designs show much better accuracy and are really the way to go here. If you have a good supply of the SS109s and want to burn the up, hey, no problem at all. But, all the trigger time in the world won't make a 3 MOA bullet shoot any better than 3 MOA. From a prone position with a sling, I can hold about 3/4 MOA, and so require my equipment to do at least that. A 3 MOA rifle and or ammo is just an excersize in frustration for me, for most forms of competition.
You're the one who ultimately sets standards for performance here, and what you're willing to accept is the bottom line. However, I think you're cheating yourself by not going with top-drawer bullets when assembling ammo to be used for any sort of competition. Let me know what you think, and we'll be glad to get you steered towards something that should do a better job for you.
Sincerely,
Kevin Thomas
Lapua USA