Chrono broken, would this bee to slow for .223?

dastt

dastt

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image_zpstdlcnizz.jpeg

This testing is done at 200yds
This is for my .223, powder is varget, shooting 80gr Bergers, shooting will be done at 400yds max

The bottle of varget says 27.5gr but that completely fills the case.
 
dastt said:
image_zpstdlcnizz.jpeg

This testing is done at 200yds
This is for my .223, powder is varget, shooting 80gr Bergers, shooting will be done at 400yds max

The bottle of varget says 27.5gr but that completely fills the case.
Click to expand...

My best load for 80gr VLD's is 23.8gr of Varget. It gives me 2840fps through a 24" barrel. Very accurate load....for my rifle.
 
image_zpsk7f3tiyx.jpeg


Rem700 with 28" McLennan barrel and home made stock by me, still have to get the action blue printed
 
I get about 2800 fps with my 53 vmax with 25.5 Win748
I get about 2800 fps with my 69 seirra match king with 23.3 IMR 4895

I and shooting a .223 Remington 700 tac SPS 20 inch barrel, I know these loads are not on the hot end of the spectim but I find these loads (69) very stable even out to 600m

Are you shooting groups of two when developing a load? Maybe a large sample size may result in more consistant results?

Nate
 
Why are people focusing on 2 shots? No, I shoot 2 shot groups over a large powder range and pick a node that looks good then I do 5 shot groups from there. This is the very start of my ladder test, I simply want to know if 23.8gr would be sufficient enough before loading more ammo around that node.


I don't just shoot 2 holes at a target and say "well that looks good"
 
dastt said:
Why are people focusing on 2 shots? No, I shoot 2 shot groups over a large powder range and pick a node that looks good then I do 5 shot groups from there. This is the very start of my ladder test, I simply want to know if 23.8gr would be sufficient enough before loading more ammo around that node.


I don't just shoot 2 holes at a target and say "well that looks good"
Click to expand...

Because two shots really don't tell a person anything, and it can be very misleading. You can fluke two shots overlapping the same hole with a load that won't average moa with a few three or five shot groups. Three shots reduces the odds of a fluke, and five shots reduces the odds considerably more.
 
Use a drop tube and load 25 to 26 gr.

Fire 5 shot groups. pick one.

My rifle has a 30" brl and get 3000fps with 80s.

It has the Wylde chamber, so bullet is set well out.
 
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stubblejumper said:
Because two shots really don't tell a person anything, and it can be very misleading. You can fluke two shots overlapping the same hole with a load that won't average moa with a few three or five shot groups. Three shots reduces the odds of a fluke, and five shots reduces the odds considerably more.
Click to expand...

My next loads will be 23.4 23.6 23.8 with 2x 3 shot groups. The most consistent will load 2x 5 shot groups.

This is the way I do all my load testing and never had a problem finding very accurate loads
 
dastt said:
image_zpstdlcnizz.jpeg

This testing is done at 200yds
This is for my .223, powder is varget, shooting 80gr Bergers, shooting will be done at 400yds max

The bottle of varget says 27.5gr but that completely fills the case.
Click to expand...

The bottle may say 27.5 grains, but it also says a 55 grain bullet.

As it happens I chronographed some 80 grain SMK/Varget loads today because the 25 grain cold weather load proved to be too hot. 24 grains of Varget averaged 2855 fps with a spread of 10. This is out of a tight chambered, 28" Gaillard barrel, Lapua brass and 205M primer. 23 grains shot very well at 100 but the velocities were all over the place. Spreads of 100 fps more or less, not worth the effort to find the average.
 
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