Thread: Day at the range

Originally Posted by hunter308

Finally found a better load for the sierra gameking bullets I did some more testing while at muckos place I wanted to try out 55-56 grains of 2209 with 56 grains being max charge in the speer manual did not get any acceptable accuracy but did get some chrony readings my initial 53.5 grain load for the sierras got me 1" at 100 meters unfortunately the batteries on the chrony got a bit low and did not take the velocities of the 53.5 grain load which I was a bit dissapointed but at least this will be a slightly harder hitting round than my original load with the hornady bullets so for the accuracy I am getting at 1" at 100 meters I might leave it there and call that the load my rifle likes for this bullet combo.

The brew
RP brass
federal210/CCI200 primer
53.5grains of 2209
130 grain Sierra Gameking
cartridge overall length 3.260"
24 inch barrel

The loads that did get recorded are below
56 grains (max load in speer manual) = 3050 fps
55.5 grains = 2974 fps
55.0 grains = 2950 fps

Why the mix of primers? Stick with one type, otherwise its a variable that changes everything.