Projectile sped needed from an unknown round.

Seriously! That slow? jeez louise.

JBM

I chronyed my 6.5x55 Winchester super X loads at 2300.

I got 2420

Yeah it puts a 400m shot at about 10 or 11 MOA

There are these really neat thingies http://www.nzhuntingandshooting.co.n...m-chrony-2946/ :)

I know i just finished buying one for the club but unfortunately the range where it is is not handy to us.

I'm guessing its these ones:

https://www.sierrabullets.com/index....stock_num=1920

2410fps would be right for the drop you've got.