44 magnum primers

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rikman

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I just setup dies for 44Mag on my T mag and was looking over the Lyman data for 44Mag. They list both large std and magnum primers, but don't specifically when to use one or the other....

So, you use Std primers with Unique and Magnum Primers with slower powders like H110?


Thanks
 
You're probably going to hear 1000 different answers to this question. I'll tell you what I was taught 34 years ago and you can follow it if you want.

I was taught that for faster powders use regular primers and for large charges of slower powders use magnum primers. I've lived by that rule for the most part.

Or just use Winchester which is good for regular or magnum.
 
Check another reloading data source and see what it says. Lots of free data on the 'net.
 
I use Standard Large pistole primers CCI for everything. Just me but maybe I am missing something.

You are, you need to check all the data for the listed loads, and use the recommended primers listed. Slow, harder to ignite ball powders like H110/W296, are more consistent with magnum primers, and can create a squib load with standard primers in colder climates, but probably not in sokali.


NCsmitty
 
Im just starting to load magnum rounds. The last year and change had been only 45acp,44 & 38 Spl.

I just loaded up some 41mags to try tomorrow and I was surprised that the Lyman manual didn't specifically give a primer/powder combo. Until tonight I assumed magnum round, magnum primer.


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Just read Speer manual and has a very good explanation on primers. Thanks to all for the replies and the discussion.


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All's well that ends well.:D I always will look at multiple sources for my reloading information and most of the bullet manufacturers data seem to agree on when to use regular or MAG primers from what I have observed so far.
 
I have been loading for both the 44 and 41 for several years now, well since the early 80's. I have generally had great luck with simply using the Win LP or SP in 95% of my loads. This said however, I am now working into cast bullets, and am finding that the Win's are a bit hotter than needed at times. I have started to experiment with a few CCI's and also using the Wolf as well, and am finding both have been good with the lighter loads, and getting better accuracy and consistent velocities over the Win's.

This said, if the book used X brand to test a particular load, and it is on the upper end, then go with what they recommend. The Win is a good all around primer which can be used for a wide variety of powders and loads, but they aren't the end all for everything.
 
Primers, this has been a commonly addressed topic.

Several have addressed this accurately in my opinion, in that, there is no substitue for published data. The proper way to determine which primer to use, simply use the primer specified in the books.
 
Something I failed to mention in my answer regarding Winchester primers. Win. makes at least 3 different pirmers for small pistol. I didn't need large pistol at the time, so I didn't notice if the large pistol primer line is structured the same?
1. Standard loads
2. Standard or magnum loads
3. For magnum loads

I'm not certain of their large pistol primer product line, as I only encountered this during the shortages we experienced 2 or 3 yrs. back when I was buying small psitol pirmers for my .357 mag. and 38 spcl. reloading needs. I never quite understood the physics one that does both.
 
Craig, why resist using magnum primers with 2400? Specifically a 158 grain JFP over 13 grains of 2400 in .357 magnum with a CCI 550 primer, to be shot in a lever action rifle. Please don't tell me I need to pull a bunch of bullets...
 
I too use the standard primers for faster powders and magnum primers for slow powders. BTW; my Lyman handbook shows, at the bottom of the page, a legend that states those loads with an *, "*Designates the use of magnum primers"
 
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This has nothing to do with the specific question it is just a reminder for those of you that use Remington Small Pistol Primers....DO NOT USE THEM IN .40 OR .357. There is a tiny, and I do mean tiny, warning on the side of the label. I had put this in a blurb previously. Just a repeated safety note.
 
My Lyman manual denotes the use of Magnum primers in .44mag with an asterisk * next to the powder. I bet yours does too.
 
grandutefan, your load mentioned is basically a start load and will be fine in your rifle.

The key here is that magnum primers are not needed to ignite Alliant 2400 powders, it works fine with standard primers. That does not mean that you cannot use magnum primers with 2400, rather if you work up from a start load with magnum primers, it means that you may not be able to use the maximum listed load, but there is no hard and fast rule regarding whether you can use magnum primers or not.
What you don't do is to select a maximum load to start, using magnum primers, when the manual calls for standard primers, because you never know.


NCsmitty


NCsmitty
 
^^^adding to what NC said,^^^
You also do not want to simply switch to a mag primer with an already worked up load using a standard primer. Back down and work back up.


Also, if your doing load development, your usually starting at the bottom end loads and working up anyway. Simply due to the fact that "X" manual, or data, list "Y" primer as what they used in their data, is not a specific reason not to give another primer brand, or same type for said load, a try.

Unless your starting at the top end of the data, or simply picking loads off the net,which isn't wise in the first place, your not going to have much, if any, issue with most normally used or listed starting loads, if you choose to use one over the other, just don't swap sides mid stream.
 
For large pistol loads I got where I use CCI 300 or CCI 350 most of the time and use accordingly with good results...I can tell the difference when shooting and CCI makes the distinction between the two.

Winchester makes the one size fits all "standard or magnum" which I use with anything just like the label on the box says...never had any problems and loads are very accurate.

Not sure why Federal & CCI don't make a one size fits all Like Rimington & Wichester or viseversa, I just follow the load data...
 
I use H110 (W296 is the same thing) exclusively with 44 magnum. WLP primers and a firm crimp and never had a problem. The Winchester WLP is designed for standard loads and for those cartridges calling for a mag pistol primer.
 
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