I have an older Sig compact model, just can't remember the model (maybe 228 or 229) When I bought it I bought 300 rounds of Winchester LEO only Ranger ammo (Black talon without the black).With that ammo it is absolutely the most accurate auto I have ever shot. Gold dot and other Winchester ammo, not so much, but I and another friend were getting clover sized groups at 50' indoors. I still have 3 boxes of that batch of ammo and 300 of a later batch. I have often wondered how many guns I sold off as inaccurate, when the ammo was not what the reputation was! I came across a batch of Speer LEO 45 ACP (40,000 rounds) That a Police Department had condemned their 4506's, but I found that the ammo wouldn't hit anything in any 45 I tried (1917, 625, 4-1911's & 3-Sig 220's) as well as 2 other testers in their 5 autos combined. So in this time of ammo crunch, watch out for lacking quality. Ivan