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Post by 2sheriffs on Oct 22, 2014 19:05:37 GMT -5
I was just looking on Speer's website and it says factories load them with small rifle regular primers and that is what their data shows due to the high pressure they are loaded at.
Ron
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Post by Encore64 on Oct 22, 2014 21:58:38 GMT -5
I read that too, and maybe? I don't really buy into that. Tend to think that started with the small rifle primers being used in the 454 Casull. The 327 Fed is pretty high pressure, but not nearly as high as the Casull.
Hodgdon calls for small magnum pistol primers and that is what I have used without issue. I would probably try small pistol or small rifle if I were to use 2400 or AA9 powder to prevent premature pressure spikes, but for now sticking with small magnum pistol primers.
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Post by magnumwheelman on Oct 23, 2014 8:50:50 GMT -5
probably depends on the brand & how hard the cups are... I'd think using CCI or another with a harder cup, you'd be OK with pistol primers... kinda ran into similar with my 22 Hornet revolver... I tried using some pistol primers & Winchester primers didn't look good, & the CCI's looked good
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jsh
.327 Meteor
Posts: 884
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Post by jsh on Oct 23, 2014 11:19:59 GMT -5
This is just my findings from working with the 32-20/30-20. Small dose of fast powder and standard weight bullets 90-120 grain I use small pistol. Full cases of slow burning powders and heavy bullets, 140-220 grain I use small rifle.
My field pistol loads using a load of bullseye I worked up went from a 6-8" group at 50m to a 1-2" group. I suspect the small rifle was either shoving the powder out of the case before it was completely ignited or a double whammy on pressure. Pop, primer then boom powder. Chron reading were all over the place too. This cured it.
Some of the IHMSA 22 hornet shooters have reported better results with lite loads when using small pistol primers.
Jeff
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