I am interested in buying a good rangefinder. What model would be good to use for both hunting and 3D shooting? I want something that is compact and that I can carry in a pocket. Thanks in advance.

Nikon 400. Very small with .5 yard accuracy out to 100 yards. Can be had for ~$200.

I have a Bushnell YARDAGE PRO for my Golf, $150.00 at cabellas. It's not water proof, It is compact enough to carry in my cargo pocket, I've used it practicing at the range. It is good out to 200 yds on soft targets (I carry it when walking my dogs and range off them when I get the chance) and 400+ on reflective. I'm happy with it.
My hunting buddy spent considerable more on the SCOUT series, It is waterproof has a zip mode and is slightly smaller than the YP. He is happy with it.

I have the Yardage Pro 500 and am well pleased with its utility. It won't read less than 19 to 20 yards . . . but if an animal is less than 20 yards I know it anyway and don't need a range finder.

I have the busnell sport. its good to 400-800yrds reflective and non-reflective. +- 1yrd. I got it at Gander Mountain for $169.00. it works great for 3d shooting. it accurate and very compact.

I have Bushnell Scout, used it for two years. Paid $299. Battery last about six months so an extra battery in the pack is in order.

I also have a scout like Excaliber, and I absolutely love it! Paid $240 brand new on E-bay(camo).

I got a Nikon 600 off E-bay(new, saved about $90). So far I love it. 1/2 yard accuracy out to 100yards. I pulled the tape measure out and placed objects at various distances and it is on the button. I play around with it all the time at to test capabilities and it works great in pretty nasty weather. Here in Upper Michigan where I live, we get some nasty weather and I am lucky enough to have a pretty tame deer herd in town. There is a city park where I have gone and ranged deer in heavy snow fall and it works great. The Nikon is awsome. It has made readings out past 700yards while ice fishing(large objects AKA houses). As far as size and pocketability goes, can't get them much smaller.

Bushnell Yardage Pro Scout