Anyone loaded 300 Gr Sierra Matckings in 338/378 Accumark ?

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10 March 2008, 00:14

Anyone loaded 300 Gr Sierra Matckings in 338/378 Accumark ?

Just wondering how they went, did thye feed from the magazine and shoot accurately and what speeds did you obtain ??

10 March 2008, 11:45

btt

10 March 2008, 23:50

Heat

I haven't tried the 300 grain bullets in mine yet but I found my rifle certainly like about 104.1 grains of IMR7828 with the 225 grain TSX bullets... A couple of people I know shoot the Sierra Matchkings and are using H1000 at about 100 grains for roughly 2700 to 2750 fps... Retumbo will exceed 2800 using about 105 to 106 grains of powder...

Ken....

"The trouble with our liberal friends is not that they are ignorant, but that they know so much that isn't so. " - Ronald Reagan

11 March 2008, 00:18

Thanks Heat,

I have an accumark arriving this Saturday coming..............cases are so expensive !! I beleive un-nessecarily so, but I have noce choice at the end of the day !!