Sure, anything can be an issue under the proper (improper?) circumstances.
Perhaps it would have been more accurate to say that it's no more likely that a person would be taken to task for shooting "too many times" (as long as the shooting was justified) than it is that they would be accused of using "too big a caliber".
Perhaps it would have been more accurate to say that it's no more likely that a person would be taken to task for shooting "too many times" (as long as the shooting was justified) than it is that they would be accused of using "too big a caliber".