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11/26/2010 4:45:56 PM EDT
I have been loading 223 and here is what im using

25gn of win 748 powder
55gn bullets
CCI magnam 450 small rifle primers

Just curios as some people say you should use less powder with the magnam primers.

Thanks
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11/26/2010 4:50:12 PM EDT
[#1]
Mag primers can( but don't always) increase pressure.  Follow your manual and work up the load.



eta:  you are below max by quite a bit on that load according to the Win data...shouldn't be an issue.
11/26/2010 5:51:23 PM EDT
[#2]
For safety, always work a load back up after changing anything in the recipe.

Unless you live far away from me, then you can do whatever you like.
11/26/2010 7:21:43 PM EDT
[#3]
I might as well post this link here, too:

Primers and Pressure by James Calhoon

11/27/2010 8:50:04 AM EDT
[#4]
So is it ok or what??
11/27/2010 12:30:29 PM EDT
[#5]
Quoted:
So is it ok or what??


IMO, yes.  Even recommended in the above link.
11/27/2010 2:29:36 PM EDT
[#6]
I've reloaded thousands using 24.8 grains of W748 with magnum primers.

It is a nice light load and I have never had any problems.  It is easy on the brass.
11/27/2010 2:36:10 PM EDT
[#7]
Not the same but I use, CCI 400 SR, H335 25.5g, 55g FMJ...used some 450s I had and experienced no issues with the same recipe. I would say its safe, definitely work up the load.
11/27/2010 4:37:49 PM EDT
[#8]
Just fired off some of the exact load a couple days ago with no problems. It's a somewhat light load to me. Not saying it's too light, just "lighter" than some of my other loads. It shoots pretty good out of my 20" 1x8. Easy on the rifle and the brass. It was pretty cold and I was in a rush, it shot a 1.6" group with irons. I also shot some awhile back with regular WSR primers and liked it a tad better than the mag primers. All of my 55 gr loads are plinkin' ammo except some that I am working on now for close to mid-range yote shooting.
11/28/2010 1:11:00 PM EDT
[#9]
Excellent

Thanks all that's the answers I needed

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