Magnum or Standard Primers?
I'm running out of my standard primers. I have some magnum small rifle primers. I have noticed that some of the reloading data calls for magnum primers. Does this mean that you should not us them when they are not called for? Thanks
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Magnum primers are specifically made for slower burning, large grain powders. That are more difficult to ignite, specially in colder weather.
Drop your normal load by one grain. When using data specifically calling out standard primers. If all you have is magnum primers.
It would be best if you loaded test loads, with both the standard and magnum primers. To see if POA has been radically changed. With the 1 grain less magnum primers.0 -
Last few trips to the stores, saw lots of primers and some bullets. Didn't see much powder for sale.
Some primers are "hotter than others" magnum or not. I would back down to at least starting loads and work my way back up.0 -
litetrigger,
quote:I'm running out of my standard primers. I have some magnum small rifle primers.
You don't specify whether your original 'standard primers' are for Small Rifle or not. Small rifle and large rifle primers are different diameters and depths. SR primers will fall out of LR primer pockets.
If they are indeed small rifle to small rifle then you can use the magnum primers just back off to a lesser charge and work your way up.
Best.0 -
I use magnum primers with loads that call for them and anytime I use a ball powder. 0 -
Actual chronograph tests showed me that I could/should use at least .5 grain less powder with CCI#41(mil spec magnum small rifle) compared to CCI 400 small rifle standard primers to get similar velocities(223 Rem).
If you're running close to the max, you should drop powder at least 5% and work back up.0
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