300 rum and primers

[Lefty7mmstw]

I just use the 215. The thing burnes 100 grains of powder for cripes sake. I pitch a 180,190, or225 with my 300 u and my lowest charge weight is 93 gr..

[ppoole]

I loaded the old load about 8 months ago I loaded 100 up and have about twenty left but powder is dry.

I'm going to try one more thing I might be able to get it yet

[ppoole]

Mine loves 87.7 retumbo. 93.5 retumbo but the favorite is 89.7 of h1000 and the 215. .252 is hard to argue with when it's a factory barrel and receiver.

But I just got an instant Indicator in so I'll play with that and check the seating depth. I'll let everyone know what I find

[ppoole]

Bx6x47 I left the chrono at the house by accident and just got it in about two weeks ago have not been able to pull it out

[bobh918]

I haven't messed around with the standard 215's, but i have tried 215M's in some loads and have found them to be too hot and soft and have gone back to using cci 250 primers in my 300RUM. For some reason, in all of my loads I was working up, the 215M's were always running hotter than loads with the cci's. Even with minimum charges and backed off seating depths. Like everyone says, no two guns are equal, so stick with what works and go with that. It's just the price we pay to experiment and play!

[ppoole]

Originally Posted by bobh918

I haven't messed around with the standard 215's, but i have tried 215M's in some loads and have found them to be too hot and soft and have gone back to using cci 250 primers in my 300RUM. For some reason, in all of my loads I was working up, the 215M's were always running hotter than loads with the cci's. Even with minimum charges and backed off seating depths. Like everyone says, no two guns are equal, so stick with what works and go with that. It's just the price we pay to experiment and play!

Yeah I went and tried it again with no luck. I loaded the rest of that lot of brass with 215s and bullet seating depth measured from ogive is perfect, will check runout tomorrow and shoot Saturday.