300grains

Is it necessary to use magnum primers in .375 HH. I have always used them, but just wonder what you use and why.

the Razorhead

I don't reload for that cartridge, but I think I would... that's a bigassvolume case to try to light off...

bigcountry

I can't say for a 375 but I use simular powders in a 300RUM and I found it, that it depends. I actually got some good accuracy with fed 210 primer with faster powders like 4350 and light bullets. But needed a 215M or 250 for H1000 or slower.

300grains

Thanks, good to know. Will try 210 primers with a litttle faster powder.

vangunsmith

I would use them yes. IMHO vangunsmith

crimedog

I use magnum primers for most guns.