For a less costly bullet in the 6.5 x 55, try the 129 or 140 grain Hornady Interlock. I've killed deer with both in the 6.5x55 and would say that both work very well in terms of accuracy, penetration and killing ability.
If you want to try a premium bullet, I would recommend the 130 grain TSX's. They're very deadly on game.
On a recent African plains game hunt, I used the TSX's (130 grain .270 and 140 grain 7mm (7x57)) exlusively and they worked absolutely flawlessly. The difference between a 130 in the 6.5 and a 130 in the .270 or a 140 in the 7x57 Mauser on game would be negligible AFAIC (my .270 velocities were around 2,975 fps and the 7x57 chrono'd at 2,883 fps).
We only recovered one bullet out of 21 animals killed with the TSX. The rest sailed through, leaving a generous (but short) blood trail:
There's some pictures posted here:
http://www.canadiangunnutz.com/forum/showthread.php?t=174930[/QUOTE
Wow thats one impressive trip you must have had the time of your life. Yeah I was leaning towards the tsx 130 gr at first so I think I will give them a show thanks.