My Tikka T3 6.5x55 has a 18 inch barrel and DPT suppressor .
Kiwi Greg loaded me up 100 rounds and we settled on this load which gave average groups of 14mm .
There was a higher velocity node up above 2800fps , but it was bordering on over pressure .
The 6.5x55 can still push out reasonable speeds from a shorter 18 inch barrel .
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