It will cycle better with the lighter weight bullets. The 147grn actually jams in most short-barrel handguns due to not enough "blow-back" to cycle the next
round from the weight of this behemoth exiting the barrel. I've shot most 9mm ammo over the years. I prefer Hornady for self defense. Their only claim is "We make large, open, fatal wound cavaties!" It is custom loaded also, so less chance of it "not" firing when needed most. I would probably recommend the Hornady Critical Defense Ammo as it is specifically made for self defense (shooting through clothing layers & expanding properly, whereas most others just clog and act like a roundball, causing little damage. It has a rubber/nylon tip guard that allows it to expand properly and makes it quite deadly). Usually the lightest weight bullet moving at high speed, provided it expands correctly, creates the most damaging wound cavity (based on what I've seen with ballastic jello tests. The Cor-Bon, I believe it uses the Speer Gold Dot bullet with different powder package vs Speer's Gold Dot Ammo. It's probably little hotter (have used it as well). Federal ammo works decently, but have saw some tests with .45 that would preclude me from carrying it for defense. It is stopped by bone and will not open/penetrate correctly. The Hornady (in .45ACP) opens up about size of a quarter with barbs that look very similar to the old Winchester Black Talon, in a starfish look that cuts a ragged, nasty pathway, punching right through bone, retaining almost 100% of itself. If you get a center mass hit with the Hornady load, it's game over for the bad guy. For practice I like the Winchester (Walmart in red, white, blue box) roundball cheap ammo and the much superior Sellior & Bellot, which is sealed for wet-weather environments and suprisingly cheap. I have a friend that owned a 5906 (Stainless Slide, Aluminum frame-looks similar to yours) and he fired about 500 rounds of German Hertinburger ammo through it, which is +P+ rated & designed for submachine guns. It cracked his frame rails (which are aluminum). I would shoot regular practice ammo and before leaving the range, maybe fire just few +P or whatever you are going to carry for defense, so you're comfortable with what it feels like. Just know, it will shorten the life of the gun and eventually even if it doesn't crack the frame rails, you might have to peen them back into specs where they stretched a bit and caused it not to be accurate anymore (incomplete lock-up of barrel/slide assembly=wobbly barrel). Aguillar Ammo out of Mexico has a nasty little round as well that's all aluminum bullet that's scored to fold back. It's probably just under +P rated, but with the light weight and powder package, does 1657 fps out of a .45ACP....burns clean, light recoil and hits like a mule. Probably be around 2000fps out of a 9mm. Nasty! Also, Compensated guns are finicky on ammo as well and can be unpredicatable...so if you have one of these, start with the 90-115 grain bullet & work up toward the 124 to see what it likes feeding the best. You can sometimes change springs if you know you must continually shoot hot loads. An old 1911A1 .45 caliber has many options for this, along with shock-buffs that are nylon bushings that protect the frame/slide from damage. Most Remington ammo I have found totally unreliable in any Ruger...and try not to use the stuff anymore. The UMC (Remington in yellow box sold at Walmart) won't hit the broad-side of a barn even if you're right next to the thing. It's horribly inaccurate and skunks up the gun so bad you have to use Gun Scrubber (I use automotive carberator & choke cleaner) just to get the powder fouling out. Hope this helps. Ask the rangemasters at your local range as well. They almost always rent/shoot guns & know people who reload & experiment with all the new ammo. Good source of knowledge and a great way to pick up equipment or sell your unwanted stuff...do they have a bulletin board? Happy shooting.