quote:

Originally posted by rcamuglia:
Check out the 155 Lapua Scenars. They are blowing away anything shot in a .308 and in the 06 would be awesome!

No good mate, a 308 with a 30" barrel can easily match if not exceed a 22" 30.06 with 155gr bullets and quite probably match it with 175-190 grain bullets.

The only advantages over those guys I will have is a scope, a bipod and heavy bullets.

I'm putting an incline base on it for this, normally to shoot the tikka at 1000 I need to aim at the top of the range-in-use flags behind the stop butts and several along if the wind is up.

I believe it's called Kentucky windage and Arkansas elevation where you're from....

I've got to admit, I was sort of inspired in issuing the challenge by you and Larry's little bet.

First observations are that this is a bloody accurate bullet in my rifle.

The wind was quartering at between 5 and 19mph but the total horizontal dispersion at 600 yards was under four minutes.

The total vertical dispersion for 54-57.5gr of H4831 was about 13 minutes.

I will not be bothering with the lower node and load up a few around the 57.5 grain mark to see which chronos out at less velocity variation.

The nodes seemed around a grain and a half wide, if you know what I mean, should I try .3gr increments around 57.5 to +-1.5 gr?

I really hope you didn't mean "Minutes" of dispersion at 600 yards.

Less than 1/2 a MOA would be good.

quote:

Originally posted by rcamuglia:
I really hope you didn't mean "Minutes" of dispersion at 600 yards.

Less than 1/2 a MOA would be good.

Sorry, I've changed it in the post, 13 minutes of vertical dispersion.

It wasn't unexpected as by calculations the difference inn drop between a projectile at minimum load velocity and max should be around 11 minutes.

The 4 minutes horizontal was not great of course but in the blustery wind that ranged between barely perceptible and about 20mp gust from 7 oclock, it was much as expected given I wasn't dialling in ( sporting scope remember ) and trying to shoot at calm wind.

I was under the impression it was mainly the vertical dispersion we were concerned with in this method?

I still think you're confused a touch

13 Minutes of vertical dispersion at 600 yards is equal to about 78".

13 minutes at 600 yards.

13 x 6 = 78 inch group.
That's a big target board.

quote:

Originally posted by rcamuglia:
I still think you're confused a touch

13 Minutes of vertical dispersion at 600 yards is equal to about 78".

I appear to have a slight issue with writing numbers in the wrong boxes and not checking before saying something stupid...Sorry 13 and 4 were my comeups and windage from a 200 yard zero from the morning session....

The ladder was about two and a half minutes high by a minute and bit wide.

Hope that makes more sense.

That sounds more like what I would expect.
SOP is to zero at 100 yards, and have all come up from 100, assuming you are dialing in the comeups.

Ghubert,
The 208 A-Max shoots real well out of my 22 inch barrel. I have been using 59 grains of RL22 and getting groups that measure from .3 inches to a little under .5 at 100 yards. The only problem is that out of my rifle this load only produces 2560 FPS. Where I shoot 800 yards is the max distance and it does very well at this yardage.

I have been up to 61 grains of powder but the accuracy fell off very badly.

Regards, Keith

quote:

Originally posted by Keith1:
Ghubert,
The 208 A-Max shoots real well out of my 22 inch barrel. I have been using 59 grains of RL22 and getting groups that measure from .3 inches to a little under .5 at 100 yards. The only problem is that out of my rifle this load only produces 2560 FPS. Where I shoot 800 yards is the max distance and it does very well at this yardage.

I have been up to 61 grains of powder but the accuracy fell off very badly.

Regards, Keith

Great Load Keith, shot better than my H4831 load.

I lost......

Kept up for 2 shots, misread the wind somehow and put one in the white at 2 o'clock, then bull for next shot, 3 for the last one at 9 o'clock.

Could have bloody done it if I'd shot straight.......


Thanks for all your help chaps.