Jdillon
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Is anyone using magnum primers in their 22-250 when using H380?
Magnum Primers for 22-250 and H380
- Thread starter Jdillon
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NCsmitty
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H380 is an older ball powder and often those ball powders can benefit from a magnum primer for more ignition consistency. I see nothing wrong with using a listed start load in your 22-250, with a magnum primer, and working up. You may end up with a lower than maximum charge weight for a top load, is all.
NCsmitty
NCsmitty
GooseGestapo
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I don't.
I know that Speer recommends that you use a magnum primer with spherical powders when using THEIR primers/data.
However, Hodgdon doesn't recommend them except where noted.
I use either Winchester LR or Federal #210 with H380 in the .22-250 w/55 and 60gr bullets. But then again, I'm in the sweltering south (temps in 100's this weekend- in the shade, and not "temp-index"). Our idea of "freezing" is just that, am temps in the teens or 20's, typically warming to 30's or 40's during daytime. Not really enough to "need" magnum primers....In the smallish .22-250 case.
My .257wby w/100gr bullets and mil-surp WC-860, even with a Fed-215 magnum primer, loads that get 3,500fps in 80's-90's, will show 3,100fps at 30degF. For my "hunting" ammo with the .257mag and .300RUM, I now use Reloader25....
I know that Speer recommends that you use a magnum primer with spherical powders when using THEIR primers/data.
However, Hodgdon doesn't recommend them except where noted.
I use either Winchester LR or Federal #210 with H380 in the .22-250 w/55 and 60gr bullets. But then again, I'm in the sweltering south (temps in 100's this weekend- in the shade, and not "temp-index"). Our idea of "freezing" is just that, am temps in the teens or 20's, typically warming to 30's or 40's during daytime. Not really enough to "need" magnum primers....In the smallish .22-250 case.
My .257wby w/100gr bullets and mil-surp WC-860, even with a Fed-215 magnum primer, loads that get 3,500fps in 80's-90's, will show 3,100fps at 30degF. For my "hunting" ammo with the .257mag and .300RUM, I now use Reloader25....
ArchAngelCD
Member.
Older manuals always recommended using a Magnum primer with Ball/Spherical powders. These days the manual authors seem to be getting lazy and use a Magnum primer in calibers with the Magnum name in it and standard primers in everything else, even when it should be called for.
1 example, Hodgdon load data, HS-6 when loaded in the .38 Special they list a standard primer, when listed in the .357 Magnum using the same HS-6 and the same lead bullet they use a Magnum primer. Mind you, the pressures THEY list in the .38n Special are higher than in the .357 Magnum so it's not even the pressure they switched for, LAZY!
http://data.hodgdon.com/main_menu.asp
38 Special
158 GR. CAST LSWC Hodgdon HS-6 .358" 1.475" 5.7 928 13,700 CUP 6.3 1010 16,200 CUP
357 Magnum
158 GR. CAST LSWC Hodgdon HS-6 .358" 1.610" 6.0 990 12,900 CUP 7.0 1106 15,500 CUP
1 example, Hodgdon load data, HS-6 when loaded in the .38 Special they list a standard primer, when listed in the .357 Magnum using the same HS-6 and the same lead bullet they use a Magnum primer. Mind you, the pressures THEY list in the .38n Special are higher than in the .357 Magnum so it's not even the pressure they switched for, LAZY!
http://data.hodgdon.com/main_menu.asp
38 Special
158 GR. CAST LSWC Hodgdon HS-6 .358" 1.475" 5.7 928 13,700 CUP 6.3 1010 16,200 CUP
357 Magnum
158 GR. CAST LSWC Hodgdon HS-6 .358" 1.610" 6.0 990 12,900 CUP 7.0 1106 15,500 CUP
Dthunter
Member
I aggree with NCsmitty.
Been there, done that. It lowered my standard deviation. Just start load development at the starting grain charge, and move up from there.
Been there, done that. It lowered my standard deviation. Just start load development at the starting grain charge, and move up from there.
Old Dog Man
Member
22/250 and H380 Powder
I've never found the need for a mag.primer in my 22/250's they both like Rem. 9 1/5 standard large rifle primers. Using 38gr.-H380 and 52gr. A-Max bullets, seated .030" off lands, and Win. brass gives me superb accuracy. Quit using chrony years ago, I'm for accuracy not speed. Al
I've never found the need for a mag.primer in my 22/250's they both like Rem. 9 1/5 standard large rifle primers. Using 38gr.-H380 and 52gr. A-Max bullets, seated .030" off lands, and Win. brass gives me superb accuracy. Quit using chrony years ago, I'm for accuracy not speed. Al
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