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Old 04-18-2017, 11:20 AM
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SLT223 SLT223 is offline
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Use the current instructions from Hodgdon Reloading manual. Once upon a time H4227 and IMR4227 were different powders. Down loading 4227 typically doesnt work well. I would suggest using mag primers amd a tight crimp. It will need the help it can get in a low pressure load. 4227 work best north 30k psi in my experience.
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