Jinx,
If you went through a 6 week training course and became a Texas Peace Officer upon graduation, please list the year if you could. Your reference to the training time and content is absolutely false by current, or even recent standards. I don't know where you got your information, but I am speaking from experience here as I am a Texas Peace Officer, and graduated the academy in 2008. At that time, it was just shy of 6 months, not 6 weeks, and the material covered went well beyond just traffic law. DPS and Game Warden training is more boot camp style, so you are correct there, but I can't comment on theirs too much as I haven't gone through it. Your officers are better trained than you think. I will give you that some shouldn't be in the field they're in, and those of us who do the job right do our best to weed out the bad ones. But you get the same thing in any job, which is why all of us, regardless of job, should do our best to keep the good and get rid of the bad apples. I have personally seen several bad ones get thrown out of the job field because they refused to do the job as it should be done.
Having said that, like the post a couple above this one said, TX law allows any centerfire cartridge. Even if your local warden did cite you, I say take it to court and let the judge decide, and once you show him the law, he has no choice but to side with you as you are following the letter of the law. Yes, it is a hassle, but it is a worthwhile one if you were to experience something like you mentioned with the Warden preventing you from hunting with your .223 rifle. What I was saying above is that I have seen different officers interpret the same law several ways, depending on the situation, but you only have so much leeway before you go from interpreting it, to spewing trash and getting yourself in some hot water. Now if you were doing something else that is unlawful and he saw the bore and checked to make sure it was a centerfire instead of a rimfire to see what all else you're up to, then I can see him asking about it. Not accusing, just saying it's a possibility since they have to be thorough to do their jobs right.