I agree with Jamie and the X man that one can not tell how well a beer is carbonated by looking at a sealed bottle. To find out if the beer is properly carbonated, one must open it and give it a proper pour. However, that does not really address the question about whether one can still get good carbonation (commercial quality) from priming in a bottle vs force carbonation in a keg.
I think the answer is definitely yes, I mean look at the many brewer's that actually bottle prime some of there top beers. It is a bit trickier. One must pay careful attention to the OG, FG and style of beer to get the proper amount of priming agent to use for good carbonation. Most of the good brewing calculators help with these calculations.
Next, as someone who bottled for 15 years, I always found that I had to wait at least 3 weeks after bottling to really see any kind of decent carbonation. I could always tell what the taste of the beer would be like after one or two weeks, but I they were never fully carbonated until after 3 weeks. With lower FG beers, it would even take 5 weeks to really develop good carbonation.
So, pop one open, pour it out and enjoy what you've got so far. If it doesn't ever carbonate enough, learn for next time and slightly increase the amount of your priming agent.
Cheers
