Some really good replies already; buy your bullets and primers in bulk. I prefer Campro or Sierra for 230gr Plated RN, and Campro for 200gr Plated TC.
I really do prefer the 200gr bullets for anything I do, but since we're talking about 230gr, I'll share some of the powders and loads that I found to be Magic at the range. But before that, a quick word about primers.
I can tell you that I've used a couple thousand each of CCI 300, Federal 150, and Winchester WLP and found that there was no discernible difference in shootabilty or accuracy. So grab what you can get cheapest in bulk and go to town!
For powders, I'll recommend the following for their versatility, metering, shootability and accuracy:
1. Alliant Bullseye. This is pretty much THE powder for 45ACP range loads. I've found that accuracy and load consistency drop off if you try to load it too hot. Meters VERY well through my Hornady L&L powder measure. Higher density powder, so does not fill the case as much as some of the flake powders. Just watch for double charges.
2. W231. I love this powder because it's so versatile for automatic pistol loads. Burns clean and meters VERY well! Ditto on the density comment above.
3. WST. This is my favorite powder due to the fact that it loads down for light recoil range rounds and burns clean in all of the automatic calibers I load for. It also meters VERY well. A bit lower density, but still does not even come close to filling the case when loaded properly, so keep an eye out.
4. Alliant Unique. Ridiculously versatile powder that meters well, burns clean, provides great accuracy and fills the case nicely. Heck, I even use this one in some of my .45-70 reloads. I always have a can of this stuff on hand. A bit lower density/flake powder, so tends to fill up the case a bit more than the others. Not quite like Clays, for example, but enough that you can typically see the top of a proper charge.
Favorite loads for 230gr Plated RN in 45ACP(G41) with COL of 1.260":
1. 5.4gr of Winchester 231: Great accuracy, full burn and moderate recoil. Just feels like a proper 45ACP round. No chrono, but I wouldn't be surprised if this made major PF for 230gr.
2. 4.5gr of Winchester WST: This is probably my favorite powder due to the fact that I can load down all of my automatic calibers(9mm, .40S&W and 45ACP) for the range with nice light recoil, excellent accuracy and full burn.
3. 4.4gr of Alliant Bullseye: This is a light recoil range load that I've used since I first purchased a 45ACP pistol. It's just awesome in every way. If I have bullseye, I just load until it's gone and that's my range ammo for the next few months.
4. 5.7gr of Alliant Unique. This one is just awesome.
5. 7.8-8.5gr of Accurate No.5: Large range of decent loads for this one I found. A sweet spot for me is right around 8.0gr. Love this powder for the fact that it flows like water and provides a really nice shooting, accurate and clean round.
Hope this helps you out!