What BH would you recommend?

Need more info draw length arrow weight.

If they are sharp and the bow is tune well ether broadhead will be fine IMO. Just put it in the boiler room and they will not go far.

I'm going to use a 650 gr. arrow with a 2 blade from a 50# Holm Osprey this fall. I feel this should work just fine if I do my part! I will keep my shots under 25 yards!

From all the research I've done, I personally would lean more towards a 2 blade.

Someone did a good writeup on it not too long ago. I'll dig around and see if I can find the link.

Here ya be;

  RMS - Broadhead Talking Points

Go with the WW and arrow weight at 500 grains, Ive done the 650 grain stuff with the lighter bow and got less penetration, you loose to much velocity. Heavy arrow- heavy bow!!

Depends on the two blade your talking about.  WW hands down if it's a two blade Rage.

If it's a 2 blade STOS, I'd take the STOS.  Better chance to have two holes.

Bowmania

Both will have no problem passing through an elks boiler room.

That RMS article is a good one.

Personnally, I go with a two blade BH and feel that it gives beter penetration on a large animal like an elk.  However,  my hunting partner shoots a three blade BH and has gotten pass throughs on his two elk.

DB

I have been shooting the Zwickey "No Mercy" 2 blade, Great steel, strong head, holds an edge very well. It will perform great on Elk, besides with a name like "Zwickey" it has to be good.

I've watched my wife kill several bull elk with a 52-pound bow and 600-grain arrows tipped with two-blade broadheads.

Seeing the penetration she gets (generally barely into the far lung), I would never let her shoot a bull with a three-blade head. I fear it might limit penetration just enough to lose what would otherwise be a quickly killed bull.

Plus, the slicing a two-blade broadhead does while the bull is running away definitely helps kill them quicker. Three blade arrows do not slice and dice while the animals are running.

I would shoot a 2 blade 160 gr grizzly.. My set up for elk is a 63# GN with a 600 gr Fir shaft with a 160 gr Grizzly or 125gr Eclipse.

I'd want to shoot as far thru an animal as possible...  pass thru if possible so I shoot 2 blades.........

2

Light bow = heavy arrows and two blade heads.     My wife hunts elk with  a 40 lb bow,  a very  heavy arrow and razor sharp single bevel two blade head.  Elk are tough!  Everyone says hit the boiler room.  There are a lot of ribs wrapped around the boiler room.  High mass arrows and razor sharp heads are what kills large animals like elk.  The light bow light arrow theory is asking for a wounded and lost elk.

bryan r, that was a very good read.