300 r.u.m 210 bergers hunting

topoX69

Member
Joined
Sep 13, 2012
Messages
5
im wondering what the best primers would be and any suggestion on how much grains to use of retumbo powder any info would help alot thanks
 

badandy970

Well-Known Member
Joined
Aug 15, 2012
Messages
59
I use cci large rifle magnum and 92.5 of retumbo. Could Possibly do more just like it and stopped. Same hole at 100 and touching at 200 when I do my job.
 

topoX69

Member
Joined
Sep 13, 2012
Messages
5
ya ive got cci large rifle magnum BR-9 primers for it but is there a difference in 200 and 250 primers
 

Tumbleweed

Well-Known Member
Joined
Oct 20, 2007
Messages
635
Location
Tillamook, Oregon
I've always liked to use Federal 215 Gold Medal Match primers. They will get a lot of powder burned well and are very consistent most of the time. I have found where a rifle did not like them and switched to CCI 250's. Lost a little velocity (about 20fps) but the ES's shrunk down where I needed them.
 

skandlus

Well-Known Member
Joined
Sep 5, 2009
Messages
92
Rem 700 300RUM
Remington brass
Berger 210 VLD
Retumbo 92 gr
Federal 215M primer
OAL 3.896
 

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