Small rifle magnum primers?

mudbug

mudbug

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I will be loading for a 223 and was curious if it is o.k. to use cci 450 small magnum primers? If it is alright to use the 450 primer, is it better suited for certain powders or anything like that?
Any information would be appreciated.
Also if anyone wants to share thier load that would be great too. It will be for a savage 12bctss 223. I don't have a reloading kit yet but have most of the stuff as I have been loading at buddies places, (I have been hinting relentlesly for a month now to the wife that one for fathers day would be great). :dancingbanana: If in fact she does buy one for me she calls it a LMNOP rock thrower kit, hopefully the guy behind the counter will understand.
 
I use 450 primers and prefer them for all weather reliability.

For your Savage, most bullets including the 75gr Amax will work great. I prefer the 75gr Amax as I spend most of my time shooting LR.

Varget is a great powder but would lean to Benchmark for the lighter bullets.

Win cases, Lee Collet Delux die set and you are well on your way to having lots of fun.

Do bed that rifle properly as the factory inletting can be very generous.

Go look in the precision forum for my article on my 223 out to a mile.
Jerry
 
I cannot comment on the primers as I am a devout CCI SR BR primer guy. As for a load my btvss (223, 1 -9) likes Sierra 69 gr matchkings and 25.8 Varget.
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BTVSS223.jpg
 
Sure you can use CCI 450, just work up your loads starting with them, don't just switch them out with 400s and expect the same results. The 450s go very well with ball powders (read: needed), normally some very accurate loads can be had with W748 and 450s in a 223 so don't pass that one by. I use 400s for Varget, H335, Benchmark, etc as I haven't noticed any difference in accuracy with those powders and using BR4s or 450s.

Best thing to do is see what your 223 likes.
 
Magnum primers burn a bit hotter for a bit longer than standard primers. They're made to light hard to ignite powders and for cold weather shooting. You don't need them unless your manual says to use them with a particular powder. Pressures can change if you do use them. Mind you, if you change primers(or any one component), you have to work the load up again.
"...she calls it a LMNOP rock thrower..." Ya gotta love 'em or move out. The answer is always, "It's not the dress." "Yes, dear.", causes less fireworks though. At least, that's what I've heard. I can say anything since I don't live there.
Look into an RCBS Beginner's Kit. Gives you everything you need less dies and shellholder.
 
I switched to 450's after doing a little comparison against standard primers. I didn't notice any difference in accuracy but that could just be the guy behind the trigger. What I did see was much more consistant velocities. Went from an ES of about 80 fps to about 10 fps with all things the same except just different primers. So I don't know how much real world difference that makes, but I do know that more consistant is better and they are all the same price. Makes the decision easy for me, anyway.
 
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