Before I answer, I am glad guys are similar to me. I really thought there was something wrong with me that sitting or standing using a bipod I could only go out to 200 yds max! I have been worrying that I'm not "good enough" sitting/standing with shooting sticks/bipod. Kudos to BCD for asking a really great question!
Now I feel more "normal"

For me ringing 8" steel:
•Standing Offhand: 100 yds max
•Sitting/kneeling arms on knees: 150 yds max
•Sitting/Standing w/bipod: 200 yds max
•Prone w/bipod: 450 yds (possibly further as the range I shoot only goes to 450)
I'm really trying to work out different options & shooting positions while on the range to get better & see what works best for me. Right now I have a simple Caldwell 4-8" Bipod for laying prone, my Slumberjack Bounty 2.0 for an option, I own a tripod to try out for standing or sitting. I've also tried the tripod out front & monopod supporting the butt stock, still a little wobbly (and means more gear/weight I have to pack & get ready when I want to shoot--might not have the time to set all that crap up.). My brother has the outdoorsman pack that has the V-notch to shoot off the upright pack. I've shot off a hog saddle & really surprised me how the butt stock not being supported by a monopod or tripod still wobbles a lot. Even if you rig your sling under a leg & pull tight, it still wobbles.....All of those options I've found to be less than ideal for me, so I'm still trying to tinker & see what's best for me. Don't know if I am expecting too much or not?
Really looking at the Swagger Bipod--anyone have experience with them? Their crazy-legs seems to be about the only option for laying prone & being able to sit/kneel in just about any possible situation.
My favorite position is to shoot prone or use a rock/boulder to sit/lean against, but I'm worried that I might have to sit or use an upright pack or something else, so I'm trying out different options & good shooting fundamentals. Maybe sit with a Swagger bipod & "hug" my pack while sitting Indian Style. Basically this would allow me to rest the butt stock on top of the pack & into my shoulder......?
As you can probably see, I'm a bit of a perfectionist and trying to figure out what fits.