ezmobile Posted October 4, 2018 Report Share Posted October 4, 2018 On 10/2/2018 at 9:26 PM, No i deer said: If it was 75 degrees I expect the velocity to be up a fair bit more than 2800fps.what temp was it when you got 2800fps on 55.3grs...? It was awhile ago when I tested this load, but I recall it was sometime in spring 2017......So, could we say an average of about 15 - 18 Deg C. Am I right in saying your barrel is 28''? Mine is 6 '' longer which is worth maybe 20 - 25 fps per inch (therefore + 120 - 150 fps). Link to comment Share on other sites More sharing options...
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