Trident Posted October 10, 2012 Share Posted October 10, 2012 Why / Why not use Magnum SP Primers. I have always loaded with SSP. Just looking for an education here. Link to comment Share on other sites More sharing options...
atbarr Posted October 10, 2012 Share Posted October 10, 2012 I started reloading right after Obama was elected. I couldn't find any ammo to buy. Of course there was also a problem finding components. All Powder Valley had was the magnum in SP. Last year I did buy a brick of the WSP, and saw a drop of less than 20 ft. per second. Either one is fine. Why / Why not use Magnum SP Primers. I have always loaded with SSP. Just looking for an education here. Link to comment Share on other sites More sharing options...
DyNo! Posted October 10, 2012 Share Posted October 10, 2012 Search for people reporting pitting on their breech faces. Depending on your load, it could be a bad idea. Link to comment Share on other sites More sharing options...
noylj Posted October 11, 2012 Share Posted October 11, 2012 There are many possible problems with shooting magnum primers in small cases that only need standard. However, if it is an emergency and if you are will to take a risk over small dangers and if you are willing to work up a load from at least the lowest starting load you can find and you know how to estimate pressure, it will probably be all right. It is unlikely that you or your gun will be damaged very quickly if you are careful. Link to comment Share on other sites More sharing options...
outerlimits Posted October 12, 2012 Share Posted October 12, 2012 38 super IS basically a magnum when loaded to major. Mag primers are just fine. Link to comment Share on other sites More sharing options...
FF1063 Posted October 12, 2012 Share Posted October 12, 2012 I've seen a lot of references for the use of magnum primers with HS-6 and other slow powders in 9mm for more consistent ignition. Also a lot of .38 Super recipes call for magnum primers. Some magnum primers like Rem 5-1/2's are supposed to have identical power to their 1-1/2's. The 5-1/2's just use thicker cups to protect against pierced primers in hot loads. Link to comment Share on other sites More sharing options...
noylj Posted October 13, 2012 Share Posted October 13, 2012 In my .38 Supers: 1) magnum primers increase velocity spread and increase group size 2) standard small rifle primers work better, but they are very difficult for my light trigger guns to ignite Thus, since even at the high end where I still feel safe, standard primers are still the best choice for me in my guns. Link to comment Share on other sites More sharing options...
GrumpyOne Posted October 14, 2012 Share Posted October 14, 2012 Here is some relevant info, but read the entire thread...opinions vary, facts do not.... http://www.brianenos.com/forums/index.php?showtopic=146365&view=findpost&p=1667772 Link to comment Share on other sites More sharing options...
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