With a bad elbow, that's about as much as I'm going to get out of a heavier arrow and a traditional bow.  What are reasonable expectations for which animals at this energy using a 2 blade?

I'd say you are good for all plains game.

Steve like Jon said you should be fine. as long as your broad heads are like razors you will slice right through most any plains game. which 2 blade are you using?  Ed had a pass through on an eland using a 52# bow and arrows that were right at 600 grains. shot placement is going to be a bigger key from what i have experienced.

This is a great question.  I've been a lurker on the site for quite a while and listened to most people suggest 700-900 grain arrows for plains game.  This is nice to hear.

i get 167 fps with my 53#plx bw longbow using 585 grains 2216 . only taken small game with it i find this thread interesting since your setup is simmilar to mine
cody

Truthfully, I would still recommend an arrow over 600 grains, but I think as long as you make your shots count that you will be fine with that setup.

Rob,

My safari isn't until next August, so I'm still playing - haven't decided on broadheads, although I'm shooting some Ribtek 145wides on woodies for deer this year.  During the winter, I will probably play with weighting up some GT's or other carbons.

I used 685 grain carbons and 54# longbow. Never did know how fast they moved. I do know they went through a kudu bull, a kudu cow, two impala,and were only stopped by the off shoulder on wildebeest and zebra. I used 2 blade Magnus on all but wildebeest. That was a Wensel Woodsman. Shot placement and sharp. Good luck.

Your producing 33.86 ft lbs of KE at that weight and speed.

If I was worried a out my set up on African game, I would not use ribteks.  That deep coregated furrel will eat up too much of your energy.

Use most any head but that Rib-Tek, Magnus, WW a Zwickey. Rib-teks are not real tough either. Shawn