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Federal 210m vs 215m primers

 
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  #8  
Old 07-14-2012, 08:41 AM
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Re: Federal 210m vs 215m primers

Quote:
Originally Posted by 1Jn24 View Post
What's es and ds?
I got 215 primers for my 308 and was questioning if it was overkill (pretty sure it is) but more afraid of too much pressure since I just read Lee recommends using slower burning powder with magnum primers I'm using Varget.
Pressure conserns legitimate or my imagination?
Extram spread and standard devation
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Old 07-14-2012, 09:54 AM
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Re: Federal 210m vs 215m primers

Thanks for the input. My concern was I was giving my bullet more of a kick than a push if giving my powder too much ignition (again my imagination not my wisdom) and therefore more pressure.

My test yesterday was in line with another comment about backing off a grain or so. I went back to start grains (42) and began climbing. This solved an accuracy issue that may have stemed from too hot a primer; the results were that the start grains were by far more accurate. 43-44 grains started scattering a bit, maybe I could increase my load if I use the 210 primers? I guess I will find out once I get some and try.

Again I appreciate the help, I'm new to reloading and need all the advice I can get.

How about that es and ds someone mentioned which was more common with 215s?
What is that?
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  #10  
Old 07-14-2012, 10:06 AM
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Re: Federal 210m vs 215m primers

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Originally Posted by ICANHITHIMMAN View Post
Extram spread and standard devation
Thanks I'll look into this.
I have some telling me 215 is fine for 308, but I want real science not redneck wisdom so I appreciate the help.
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  #11  
Old 07-14-2012, 10:50 AM
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Re: Federal 210m vs 215m primers

Quote:
Originally Posted by 1Jn24 View Post
Thanks I'll look into this.
I have some telling me 215 is fine for 308, but I want real science not redneck wisdom so I appreciate the help.
It depends on the powder and what you are using it for. It's not "redneck wisdom". There is a method to the madness on this.
I wouldn't use a mag. primer for easy to light powders(single base stick) in normal temperature ranges in a 308, but with "ball" powder or extreme temperatures it's just fine. You need to work up the load with the mag primers to start with though. If you are using an auto in 308, you need to be using mil-spec cci primers in it for 100% reliability, and those are cci mags with a stiff cup.
I shoot in cold temperatures a lot, so I will sacrifice a bit of sd for assurance that the powder will light no matter what.
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  #12  
Old 07-14-2012, 11:42 AM
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Re: Federal 210m vs 215m primers

That all sounds good to me thanks for the help.

I would define "redneck wisdom" as when people WON'T listen to others and think the first thing they were ever told is right and you can't teach them anything. I am around some hard headed know it alls and it drives me crazy they are trying to teach when they need to be learning.

I love this forum because I don't believe that's what's going on here you all sound like you really know what you are talking about thanks for the help.
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  #13  
Old 07-19-2012, 09:40 AM
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Re: Federal 210m vs 215m primers

Do a quick search here for accurate loads for the 300 winchester. I'm sure they list which primers they're using.
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  #14  
Old 07-19-2012, 10:25 AM
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Re: Federal 210m vs 215m primers

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