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CUSTOM 340WBY - 1st Range Report

1039 Views 7 Replies 4 Participants Last post by  jsthntn247
Here is where I am at the moment.

Much more has been done outside of what I am going to post today. My focus at the moment is on the 250gr bullets. I have tested 200gr SST and they average 3204fps and are 9/8" -1 1/2" in group size. I have tried 210gr Partitons and 215gr SBT but accuracy is not what I want but velocities were there.

Now, my rifle is a fast rifle, when compared to Weatherby factory balllistics shooting Weatherby ammo which list the 250gr Partition moving 2941fps and my rifle with this ammo recorded and average of 2990fps.

It is shooting Accubonds and Partitions very well but not settled on a load yet, lots of work to still do. Will also be testing the 250gr SBT.


Here are the results of the two best Accubond loads form my work so far.


Group size is .657" moving at 2913fps





Group size is .910" moving at 2917fps



Here is the result of the Weatherby Factory ammo 250gr Partition

Three shot Group size is .437" moving at 2990fps



Five shot Group size is .727" moving at 2990fps



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jbpmidas said:
250 grs., 2990 fps, no muzzle brake, ouch!
It really is not bad at all and is a lot of fun to shoot. There is a lot of potential in this rifle yet to explore. :)
You might be right but we will see what I can nurse out of it as I tweak loads. :thumbup:
CLASSIC LINES 340WBY


EXCITEMENT AT SUNRISE


MID DAY HARMONY



CALMING MOODS OF THE RISING MOON



TALL AND STRONG SHOULDERS

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5
Here is my last one entitled

CANDLE IN THE DARKNESS
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