For Full-Size 1911's
I have three full-size 1911's. One I've had for 31 years; one has just been broke in (about 800 rounds); and one is still being broke in (266 rounds).
For decades, I've loaded 200 SWC's with either 4.6gns W231 or 5.0gns W231 - most at 5.0gns. It's a great round with a clean burn and superb accuracy. Probably my all-time "pet load." Although, I've moved "over" (or "back," I guess I should say) to predominately 38 revolver target shooting these days. But considering my recent purchases, I sense I'll be shooting more 45 ACP as the weather warms
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So W231 (or HP-38) gets my vote. At least for standard recoil spring target shooters.
Someone mentioned TiteGroup. From my experience with 38 Spl & 357 Mag, it seems to run hot and lay down lead in the barrel. Not sure if it would do the same in 45 ACP; as 45 ACP is among the most forgiving when it comes to barrel leading. None-the-less, I have put a moratorium on TG under lead bullets. I have three pounds of it and trying to find load recipes to exhaust my supply asap.
N310 is my favorite, meters perfectly, burns real clean even with very light charges.
This is on my list of powders to try for a light recoil spring (11 Lb) pure target application. Nitro 100 too. In 38 Special, both propellants run clean; but especially, N310. I like N310 - double the price of other powders and worth every penny.
Bullseye is always a great choice too. From time to time, I've loaded 4.6gns under the 200 LSWC's. Although I usually reserve my Bullseye for lead 38/44 Spl target wadcutters.