Damn bro that's an incredible lift for your BW. Projecting 1RM's for the DL are hard for a number of reasons, but that being said I'd say that with a bit of training to acclimate your CNS to progressively bigger weights, you could hit 650-675 without much problem if you're able to handle 540 for 5.
Cheers mate. I've done 765 rack lockouts starting just above my knee level for reps of 4 - 5 with holding the weight at the top for 5 seconds. For sure there's a huge difference between doing it off the floor and a rack, but my sticking point is the first few inches off the floor and I know that'll improve when I bring my legs up. I think 700 is very possible cause I'm only 31 and have a bit of time to go, just like I think a 21 inch arm is possible (around 12% bodyfat).
How many natural guys have you seen pull 700? Take a look at powerlifting comp results, even in the juiced feds, and see how many hit 700+. Yes, 700 as a natural and fairly lean (i.e. not a 340lb lardass) = freak.
Take a look at drug tested comp results, IPF for example, and see what the best pull in your weight class with a suit on (which may add a lot, especially in sumo).
When I did 5 with 540, I was 215 and about 14% BF, give or take. I think 700 is possible cause I know I'm nowhere near my limit. I've been lifting on and off for nearly 20 years now.
ahahahaha
im sure your a real MONSTER , kiwiol.
we have all seen your pics, there, pencil.
but i guess everyone can dream...
Here's me when I did that lift, you fat bitch.