What to do after stronglifts 5x5

what you do next depends on what your longer term goals are (beyond losing another 15 pounds) and what you enjoy doing when it comes to exercise, neither of which is listed in your OP. Where would you like to go?

.......and I'm not a SL guy but aren't you at the point where you should have stopped doing 5x5 and started doing 3x5? because it's hella hard to recover from that many sets of big squats each and every day.

Strongly recommend the 5/3/1 method, which is what I moved to after finishing up on Starting Strength (basically Stronglifts, but a 3x5 routine). You do one big exercise each day, four workouts a week, with as much or as little accessory work or extra sets as you like. The idea is breaking PRs either in reps or in weight and it's very gradual progression. Highly recommended.

bump - looking for something to do after I finish SL as well

You definitely need to deload before moving on. 5x5's really beat the hell out of your muscles, especially when doing Squats and Deads on the same day.

I started out with SL and after a couple of months found myself stalling as well. That's when I made the switch to 5/3/1. It isn't as intense as SL and allows me to focus on not only strength, but a bit of endurance and hypertrophy as well. I can also focus on specific weak points that I wasn't able to focus on as acutely when I was doing SL.

if you are only making 1 rep on your last few sets you should have deloaded already. At that point, all you are doing is testing strength not building it.

So what are your goals beyond weight loss? That will help people give you better advice.

Move onto a program that will set you up better for long-term success, 5/3/1, Cube Method, Westside, Juggernaut. MadCow5x5 isn't bad in retrospect I would've cut Squats from the 2nd session period, 3-days a week gets brutal on the hip flexors.

I'll agree with that last statement. I'm out of the squat game for at least a month due to destroying my hip flexors from doing SL and then Madcow since...January. That's a lotta squatting.

Those are all solid numbers and to be honest, you can pretty much pick a program out a hat at this point. That's an exaggeration, but my point is that people spend way too much time trying to find the perfect program. There's a million ways to do this so if I was in your shoes I'd try whatever caught my fancy and see how things went for a weeks/months.

Obviously, if you had a specific goal such as maximizing lifts or bodybuilding (hell, or fencing or parkour or ballet dancing) you should lean to programs with those goals in mind. But at this point, feel free to try different things and make modifications to them so that the are more to your liking. Just the fact that there are 254,355 acceptable versions of 5/3/1 would indicate that people can do what they want. (they just have to call it 5/3/1 so as to not get poo-poohed off the forums)

Whatever you choose, my biggest recommendation is that you decrease your squat frequency. Not just 3x5 but I'd back it down to 1-2 times per week. Once I got to heavier weights, my best progress was with 1 heavy squatting day and one light leg day, where I used the leg press instead of the squat. People have different degrees of recovery ability, so you may do better with more or less. But 3x per week of 315+ is probably gonna bury you. Maybe if you were 24 and eating 3 pounds of red meat a day it could work, i guess.

You did great. Everyone is a little different. After you get to intermediate, it is usually very hard to get stronger on a caloric deficit diet. Most guys that are advanced or intermediate even have trouble breaking even. Most find it best at the intermediate stage to concentrate on losing weight or strength training. I would keep a 500 calorie deficit and after 10 - 15 weeks you will be there. During cutting if you choose to do cardio, you can do something like starting strength day A on Monday, day B on Thursday. Then you can do cardio on the other days. After you get there, then go to a 500 calorie surplus on either madcow or 5/3/1 until you get your lifts higher. rinse and repeat this staggering till you are big and low body fat.