Would the proper way to do burn out reps, after I finish my set of bench press, be benching the bar as many times as possible? I read on bodybuilding.com that burn out reps are the way to go for building better mass. Is this a good example?

I'm certainly no bodybuilder but that doesn't sound like the best method. I have heard that if you want to bulk / build muscle you need to be going heavy weights, I mean to where you can barely push 5 of them. Then increasing weight as soon as you are able to do 8 or so at the previous weight.

But if you still want to do some type of burnouts after that, I would say to do the following (I don't remember what its called).
Put about 70% of your max on the bar, rep to fatigue.
Drop down to 50%, repeat.
Drop down to 30%, repeat.
Then just rep the bar until you can't anymore.

This will definitely drain you.

"Burn out Reps" will help with muscle endurance and dealing with fatigue. It will also make your muscles more "pumped", however, I don't think it will make you stronger.

I have few friends who do nothing but high reps in the gym in order to increase their muscle endurance. They look like they have a lot of muscle mass and are ripped, however, when I practice Brazilian Jiu-Jitsu with them I am surprised to see how little strength they actually have.

To preface my reply, I would also like to state that I am no body builder or any sort of trainer. That being said, I have played sports all my life and done different types of weight training throughout it all.

When trying to build strength in my pecs(i.e. increase amount of weight I bench press) I used burn out reps.

For example,
I would begin with a weight of 135 for a set of 10 reps
Then I would use a weight such as 225 for 4 sets of 6
Then I would up the weight to say 240 or 250 for one set till exhaustion
Finally, after a short rest, I would return to my initial weight of 135 and push them out till I could not lift the bar.

All I am saying is that this worked for me in the past. It may not be the best method, but I have used it successfully and it includes burnout reps at the end.

The typical weight/rep scheme for bodybuilding is usually 60%-70% of your one-rep-max, 10-15 reps, 4-5 sets.

Going heavy enough to get 5 reps will definitely result in a lot more strength, but not as much muscle mass.

It's almost a technicality though. Bodybuilding is 75% diet, 25% exercise. I beleive MMark once called it "competitive dieting". If you want more mass, eat more food. Muscles are grown in the kitchen.

So if you want to get leaner etc, you should actually go for higher reps, insted of more weight and lower reps?

Cause I have been doing 5 reps with my bench, with alot more weight, insted of fx doing 15 with abit lower weight... :/

Actually, the opposite.

very low reps, high weight = Strength Gain

medium reps, medium weight = Mass Gain

high reps, low weight = Endurance Gain

All three will burn plenty of energy, although the first two will typically burn more fat.

Again though, diet is several times more important to gain mass than how you exercise. Since upping my protein intake over the last few months, I have gained 10 lbs. I don' neccesarily see it, but the scale says it's there. And I know for damn sure it's not fat...

(If anyone thinks I am a hypocrite for telling everyone to toss their scale and then using one, I am trying to maintain a certain weight for Judo, and in the strange position of trying to gain maximum strength with minimum mass.)

I think it's good to play with your rep schemes and not necessarily use just one in your workout. For example, on back day you could do wide grip pulldowns with a little less weight and more reps (i.e. 3x12), bent over rows higher weight (4 x 6), etc.

It's all about finding what works for you in terms of both strength and mass.

I'm glad that I've been able to receive multiple replies in this thread. I agree with the 75% diet bullet. I've gained 15 pounds and it's not noticeable but my strength has really come out.

To build mass I wouldn't do high rep burnouts, but I would consider doing a drop set that would get you the same amount of reps as your normal working set. Also, I would only do 1 drop set during the course of your entire workout. You really don't want to fatigue yourself on lower weight