The Accurate Reloading Forums THE ACCURATE RELOADING.COM FORUMS Guns, Politics, Gunsmithing & Reloading Reloading Magnum Primers vs Standard PrimersGo | New | Find | Notify | Tools | Reply | |
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| one of us |
You could safely use the mag primers in the 280, but your max load would probably be slightly less powder with the mag. primers. However, accuracy and consistancy may be better with standard primers. The case capacity isn't really large enough to need mag primers. | |||
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| one of us |
dr280, I posted a simular question a while back. here is the link to that thread. http://www.serveroptions.com/ubb/Forum6/HTML/003791.html ------------------ | |||
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| <hd352802> |
dr280,I always use magnum primers in 7x64,never had any problem with it. Hugh. | ||
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| one of us |
In my experience, standard primers generally yield better accuracy than magnum ones. Some claim that magnum primers are needed for reliable ignition with ball powders -- the Speer manual, for example, makes that recommendation. That has not been my experience, at least not with most smaller capacity cases such as the .223 and up to the 30-06. I did, however, once try to use H380 in a 6mm Remington, and I did have ignition problems with standard (Fed 210) primers. I did not try using magnum primers in this, so I do not know whether they would have solved the ignition problem. Even in a large capacity case, such as the .375 H&H, I've found that the Winchester standard primer (WLR) gives completely reliable ignition with a load as heavy as 83 gr. of H4350, and accuracy was better than with the Federal 215 (magnum) primer. So, my overall recommendation is to try standard primers first, then switch to magnum ones only if you find ignition problems. You could also try the magnums to see how their accuracy compares to the standard ones. So far, when I've made such comparisons, the standard primers have given better accuracy results. [This message has been edited by LE270 (edited 03-12-2002).] | |||
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| one of us |
quote: I think it depends on the cartridge and the particular powder. AA2230 won't group on a pie plate in my 7TCU without mag primers, but works fine in my 5.56. Go figure. Eddie | |||
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| one of us |
That's a tough 1 dr280, I've had a few expierenced reloaders tell me ' mag primers for charges over 60g ' guess what, .280's loads are all at or about 60. I lean toward mag prims in my 280 because I feel in cold weather I would get more reliable ignition, & that's where I use my 280 most. | |||
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| one of us |
Yeah, no problem. back off a couple of grs and work up again. Some claim better accuracy and some claim worse. They are also said to give more sure ignition in cold weather. | |||
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one of us |
First of all, there is no such thing as "never" or "always" in hand loading (except fo course "never" smoke while reloading, and "always" start with a minimum load and work up slowly). Winchester recommends their WLR for all powders in large rifle calibers. Several other manufacturers say that their "match" primers have the same characteristics and their "magnum" primers, but better quality control. What it boils down to is that you can use them, but as usual, whenever you change a component, start low and work up... Your rifle and target will let you know if you are using a good combination. ------------------ | |||
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| one of us |
As the previous post indicates, there's not really much difference, and sometimes no difference, in the "force" of magnum vs. standard primers. The biggest difference is in the price. You probably won't see any apparent difference, so return them or shoot them, whichever is more convenient. | |||
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| one of us |
dr280, went to the range this evening and tried some Win mag primers in my Savage 270 Win. My best accuracy load has been 54.5grs. of IMR4350 under a Sierra 130gr SBT. When I do my part it will shoot slightly less than .5 MOA. Started with same bullet, mag primers and 51grs. and found .5 MOA accuracy at 54grs. The thrill was when my new 135gr MK's made a 5 shot bug hole @ 100 yds with 56grs of Reloader 19 with mag primers. Isn't life great when a plan comes together.  *Nut* ------------------ | |||
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| one of us |
I've use mag primers in my loads, simply because its all the store here was able to get at the time. Improting powder, primers and lead into North Alaska is very expensive, so I had to make do. Besides, mag primers are supposed to be more reliable in very cold weather, which we have plenty of. As the above recommendations said, I backed off a few grains, and started again. ~~~Suluuq | |||
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| <auto> |
It was explained to me by a man that really knew what he was teaching that some gun powder is harder to ignite than other powders. The Magnum primers have a hotter spark than the standard primers. Kind of like a spark plug in your cars engine. Different heat ranges. Yes you can use the magnum primers, but are they needed? Sometimes with certain gun powder, they are. Can you use standard primers with those types of powder? Yes, but you may get better ignition with a magnum primer. You will just have to try all the combinations and find this out for yourself. Each gun is different as are the conditions you are shooting in. Add those things to the powder, primer, seating depth, etc. and you have an almost endless combination of variables to find the magic load. Then the temperture will change and you can start all over again. Ain't it grand? | ||
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| <.280 Sweden> |
I use mag.primers when a use magnumpowder like Norma MRP. Others powders i use standrad primers. I had a talk to the loadingexpert at Norma factories and he recomend magnumpirmers to all load with MRP powders. Jonas | ||
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