10 MM w/ Magnum primers


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48 Months
December 1, 2010, 12:53 PM
Hi, I reloaded 300 rds of 10 MM 155 gr Hornady XTC JHPs in various cases
before I realized the CCI Primers were Magnum (350). Powder is 8 grains
of Winchester Auto Comp Ball Powder. Hodgdon says I "should" be okay (doesn't give me a warm and fuzzy), but don't load anymore w/ Magnum 350's.

Any one have experience w/ 155 grain bullets and Magnum 350 primers?

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rcmodel
December 1, 2010, 01:01 PM
8.0 grains Autocomp is the recommended Starting load with a 155 grain XTP according to Hodgdon manual.

Mag primers will not make one little bit of difference in a starting load.

Shoot them.

BTW: Loading mixed cases is going to make far more pressure difference between rounds then switching from standard to mag primers.

rc

Damon555
December 1, 2010, 05:20 PM
Shoot 'em.

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