Hello!
I'm really sorry to hear about the rejections - it is an incredibly competitive process, and sometimes really good candidates unfortunately don't make it to the next stage because the competition is so high. As you have stated you have gotten to ACs / test stages before, it may have been that it wasn't a good fit at this time - it's important to remember that you'll end up at the firm that is the best suited to you
I thought I would just add my thoughts on this as an SQE intern in the
Reed Smith early careers team - to confirm, we do simply check that you are on track for / have achieved a 2:1 (even if this isn't in all modules), so your grades wouldn't have played a factor in the decision (for
Reed Smith).
One thing I would really recommend is making sure that your application answers clearly demonstrate research into the firm - not just what they do, but why those things matter to you personally. Make your motivations really specific and genuine rather than general, and tie in your previous experiences, hobbies, and overall interests. It also helps you back up every point you make with a concrete example. If you say you're interested in a particular practice area, mention a deal, initiative, or piece of work that shows you actually understand it - but focus on showing how your previous experiences made you interest in this kind of work. I would also try to link your skills and experiences directly to what the firm is looking for, such as the traits and qualities that they highlight on their website.
Strengthening those elements and ensuring your application is super tailored can make a big difference in standing out, even when the competition is this tough.
Wishing you all the best this cycle