Range Report Think I finally got some zeros

[Grump]

It took almost a year, three scopes (thanks Wonder Optics for QUICKLY making good on the only guy who got TWO bad ones...), re-doing my scope mount, two boxes of SMKs, and whatever else...

And it's to only 600 yards for now...

But oh, the joy of being free from the two-sighters drill of regular bullseye highpower!

175 SMKs, 42.0 gr IMR 4064, CCI 200s and 1x-fired FC brass, in .308 and an M1A.

4.7 mils at 600 yards (that wind was closer to 10 mph...)
[can I post a pic without hosting it on some dumb webpage???]

3.9 mils at 500 meters

2.6-2.7 mils at 400 meters

1.6 mils at 300 meters

and .6 mil at 200 meters.

Plus 2-liter jugs killt at 200 and 500 meters...

Chrono says the stuff is now 2550 fps, down 30 from two months ago and 20 degrees colder...?

 

[diggler1833]

Re: Think I finally got some zeros

Temperature does have some affect on velocity. Some powders are less temperature sensitive than others.

 

[Grump]

Re: Think I finally got some zeros

Well, this was 30 fps slower when it was 20 degrees WARMER.

Only Varget has been reported to go opposite like that, but to a much smaller degree (no pun intended, but it *is* convenient).

I'll have to re-check this brass--it might be more roomy than the rest of the FC I have around.