Re: 6.5 x 284 slow bullet ?
I can't add much except shoot it for confirmed drop. Zero, then shoot at 500 or something like that for a group and calculated actual drop from the zero.
How far are you from the chrono? need to be around 12 feet for the 284 I think.
LRH has a 24" barrel plus the brake. Not sure if that does anything for speed since it is not a rifled portion of the barrel. However, unless the powder is bad, the primers are bad, the scales are bad, and/or the chrono is bad there is no way that speed is correct. Even with low loads of 4350 and 4831 my speeds were solidly in the 2750 to 2850 range. With 59 retumbo my primers would be flat and speeds around 3030 fps. 24" barrel.