Yeah and you may be headed for a crash too!
Just remind me not to go to the range with you when you shoot those Blue Dot loads, especially if the temperature is around freezing of less.
Listen, a recipe is a complete listing of components to get a specific load. Primer, case, bullet, powder type and weight, overall length, crimp type are all a part of the equation. To approach it like "this is no big deal because I have done it for years" is ignorant to say the least. Then to put it on a public forum without those details is sinister if you ask me.
The truth is yes, they can be used. There are some powders and situations that warrant close consideration before doing so. One of them is POWDER TYPE. Blue Dot is notorious for having pressure spikes when it gets cold. Couple that with a magnum primer and your favorite load that wasn't worked up correctly and "wha-la" you have pieces of metal sticking out of body parts that really don't need them to function!
Use caution, start over with your load development, minimum load, have a chronograph, and just in case you don't have any, bring a friend that has some common sense!