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Primer vs. Powder

 
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  #1  
Old 03-10-2012, 01:50 PM
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Primer vs. Powder

Afternoon to all,
I think we would all agree that Powders have different Burn Rates and Primers are rated Hot to Cool. My question is: Would you match a slow burning powder to a cool primer ? How about a fast burning powder to a Hot primer? Your reply would be appreciated.
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  #2  
Old 03-10-2012, 10:00 PM
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Re: Primer vs. Powder

There are to many variables to assume a given primer will perform better with a given powder than some other primer. Truth is some guns will shoot better "wound tight" (hot/hot) and the next one in the rack will shoot better with a milder component or both components milder. Sometimes you just have to try them. Same with bullets. Allot of these things are trial and error even if we all wish science could save us the trouble. Get a small quantity of a few different components, mix and match to find what works best and then buy a large lot of those components. Wish there was an easier solution but if there is I would have to see it to believe it.
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Old 03-11-2012, 12:23 AM
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Re: Primer vs. Powder

I agree with D.ID
And I've never seen primers 'rated' hot cold or otherwise.
Maybe it's been tested and put in some manual, I don't know. But I know primer seating, firing pin strike energy and speed, and headspace would affect their results.
Much of this is why it's so random from gun to gun.
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  #4  
Old 03-11-2012, 04:24 AM
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Re: Primer vs. Powder

A slow, or ball, powder will sometimes benefit from a HOT or Magnum primer because these powders are a bit harder to ignite. This becomes especially true when you get above about 80gr. of case capacity.

A medium or fast powder in a Large Rifle type brass will almost always do perfectly fine with a Standard LR Non-Hot type primer. Though some days you will occasionally run into a reloading situation where a Magnum or Hot primer will show you benefits, but this is usually the exception to the rule.

For a .223 / 5.56 you really want to use CCI Mag SR, or Remington 7 1/2 are most generally THE primers...

Primer Info & Chart + Milspec Primers for Semi-Autos & Other Primer Applications
There is some excellent information in this link that explains a LOT.

Have a good one,
Gary
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Old 03-11-2012, 06:54 AM
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Re: Primer vs. Powder

Go here for countering perspective:
The Rifleman's Journal: Primers - Small Rifle Primer Study
The Rifleman's Journal: Primers - Large Rifle Primer Study

Then consider why the differences between sources posted so far, and what I said earlier.
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  #6  
Old 03-11-2012, 01:54 PM
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Re: Primer vs. Powder

Thanks for the replies. Some interesting reading with the posted links. Thanks again.
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  #7  
Old 03-11-2012, 02:36 PM
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Re: Primer vs. Powder

MikeCR,

Not quite sure what you are trying to say, but my initial post is Dead On... sir I have reloaded for over 20 years and I was taught to reload by a man who was quite serious minded. He has been all over the world in various "Security" related jobs so his life was literally on the line at times. When his ammo had to perform it Really *Seriously* had to perform, and with no excuses.

Not trying to be an ass, but as I sit here I am wondering .... I take reloading Damn Seriously just FYI... Re-Read my post and think about it. I have read German Salizars writings quite a bit, I respect him more than you may realize. Not sure you read my link...not sure you read German's .... a LOT of good solid information. There are always rock solid reasons for when I recommend a primer that have been tested over time. The reason for them being different is because there are so many Different Types of Brass and case designs / rifle designs and each will have "a reason" for the various job types.

I hope this did not come off sounding poorly or "Off Color" as I mean no disrespect to anyone on this site! Simply discussing is all.

Gary
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