Here's my .02 cents worth,Use magnum primers for all ball powders and in any ammo used in -10F period! Your primer makes up as much as 5% of the loads velocity.Ever hunted in -40F? It's damned cold when your barrel turns white with hoare frost on your first shot and I like to hear it go bang.Every big game cartridge gets magnum primers for my Alberta hunting even the 30-30.Groups are the same and your lighting the hottest fire under your powder to ensure it burns in spite of the temperature.If your going to the tropics back off two grains and your good to go.Been handloading 25years and haven't any use for factory ammo save the brass.I feel I can exceed or at worst match any thing the factory sells cheaper.Thanx Harold

One more kick at the cat.The best reloading book made for the novice reloader or veteran is "Ken Waters Pet Loads". There is a lifetime of knowledge and all the data to back it up.Mine is well worn and unless your rifle is extemely perverse there's a bullet and powder combo that will work.It's pointless to argue over what has worked for you with someone who is also passionate for some load he's cooked up.It's like trying to pick blonds over brunettes or redheads.The end result is the same and a case can be made for all.Buy the book you won't be sorry! Cheap used copies on E-Bay sometimes............Harold

One thing for sure, this statement says alot about you.

Man, whats going on in your life? There is no call for this on here and you know it.

My "problem is" that I have seen dangerous posts on this forum with folks that don't have a clue......Don't tell me to stop posting when there is a safety issue involved. Nosler, Sierra and others have technictions that have all the equipment/tools to measure and recommend safe reloads for rifles and have an 800 number.If you would rather trust in the novice information on this forum....then go for it. It's a free country and you can do whatever you want. The point is, there are professionals out there who do this every day......every day! I'm not "slamming" anyone on this forum....that is wrong to say. When I see something that is wrong/questionable. I post. I have no adgenda here just about 50 years of experience......yes, 50 years. You can take rational advice on reloading or go to the reloaders nest and hurt yourself. I stand by my original post...Magnum primers in a '06/270 are not smart. They can cause excessive chamber pressures that could cause bodily harm. There is no manual in the world that recommends a Magnum primer in one of these calibers......If you can show me one, I will issue an immediate apology. That includes -40 F temps.....Just how many people in the world hunt in -40 degree temps anyway? Regards, Rick.

Go to Speer No 13 Page 299, magnum primers recommend with H414 and H380. Then go to page 282, for 308win, CCI mag primers used with AA2460, H414, 760, and even BL-C 2.

I guess that we should just close down the forums since there are 800 #'s out there where so called professionals are paid to answer our calls and look up our questions in the same books that we do. When I posted my question, I didnt say that I was using magnum primers in my own loads. I said that I read it in an magazine. I also know people who have done it. I just wanted to know if anybody else did this. My loads are working fine with regular large rifle primers and I am satisfied with them. 48thguns, I have no real problem with what you said, its just that you came accross as somebody just looking to stir up trouble. I dont take all of the information from here to the bank, most of it is just opinions and I know that. I usually cross check most things that I get from here with one of my books. Thank you to everybody who did offer some advice, I appreciate it and you have all been a big help in me understanding the art of reloading and bullet casting.

Wow! Didn't take long for this to turn into a pissing contest.I guess Ken Waters knows absolutely nothing as many of his loads use magnum primers!You can't tell someone who knows everything nothing.This type of garbage will no doubt encourage new reloaders to this site.Discusted...........

Hello Turk101 and Bigcountry. I can assure you that I was not trying to stir anything up. I know there are recommended loads using ball powder and a magnum primers. My problem is that someone sees a post on this forum that even mentions a mag primer in a specific caliber and guess what? There are issues using mag primers especially with ball powder when it is very hot. We hunt Dogs in the Dakotas in summertime when the temp can be 100 degrees or more. I would sure call a technition when in doubt. I will mellow out my posts. We all have our own ideas and experience, but calling a Sierra Techie that does this for a living seems prudent to me. Regards, Rick.

48thguns, I'm on your side as far as calling the techies goes. This is one of the reasons I do more reading than posting on many of these sites. Someone ALWAYS takes what is writen wrong and tries to start a pi$$ing match.
I recently posted a reply on an airplane builders site. It was a political joke subject....well one of the posters took extreme offense to it and even emailed my house whining like a little baby. I'm republican and he was a democrat, if you get my drift. He seemed very inteligent but sure sounded like a big cry baby in his email.
Just wanted to tell you someone is on your side.