Thread: 308 Max loads

@Gibo i do have access out to that distance so was thinking could do a drop chart and somehow figure out speed that way if possible.
Only issue is my scope is a 2.5-8 so getting sufficient zoom at 400y on a 1" target may be an issue?
Going to work in yards as scope has the B&C reticle.

Originally Posted by superdiver

@Gibo i do have access out to that distance so was thinking could do a drop chart and somehow figure out speed that way if possible.
Only issue is my scope is a 2.5-8 so getting sufficient zoom at 400y on a 1" target may be an issue?
Going to work in yards as scope has the B&C reticle.

8x is plenty for 4-500 . I've shot 1000 with 10x and that was getting fairly small LOL.

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Originally Posted by superdiver

@Gibo i do have access out to that distance so was thinking could do a drop chart and somehow figure out speed that way if possible.
Only issue is my scope is a 2.5-8 so getting sufficient zoom at 400y on a 1" target may be an issue?
Going to work in yards as scope has the B&C reticle.

Mate its pretty easy. Set up a tall target at say 300 or 400 thereabouts but you need to know the distance via rangefinder, make sure your zero at a hundy is spot on, now the target needs to be about say a metre to be safe, draw a dot about the size of a golf ball up near the top of the target board, do not dial and aim 3-5 shots at that dot, once done, measure the distance in inches from the dot to the centre of your group. Twiddle with a ballistic calculator until the drop in inch at that particular range matches and waaalah you will have your muzzle velocity . Thats all a bit mixed up but will get you there