3 different lot numbers of varget (target)

[swampratt]

Here it is a bit windy today but I went and shot,, chrony was acting up in the wind lot of error's.
So I just concentrated on shooting groups.

This is 3 different lots of varget. one made in 2011 one from 2013 and one from 2015.
Now to keep things fair as possible all brass is once fired from the same gun and Is Lapua from same box.
Bullets and primers from same bo9x ..same seating depth same amount of powder, weighed on a 505 beam scale.

The gun had 60 shots down the barrel since cleaned last.
I shot 1 fouler shot and then the round robin type shooting to test 3 different lots of powder.

Shot at target 1 with lot #1 then shot at target 2 with lot #2 then 3 with a bullet from lot #3 then shot at 1 again then 2 then 3 etc. etc. until all 15 rounds were shot.

Here is the results.. looks like lot #2 shoots a little different than Lot 1 and 3.

This is 110 yards

 

[Jedabug92]

Interesting, looks like 8 pounders are the way to go, and I'm a little c of used as to how you shot the groups, was it 5 rounds of lot 1 then 5 of 2?

Sent from the Armory

 

[swampratt]

Well then check this target out.
load 4 and load 5 same load but changed from 210m primer to BR2
Load 5 is marked in pencil load 4 is black marker.. 5 got a bit wilder and speed was faster also.
OH I guess I should say that was 4064 powder at 200 yards shot today also.5 rounds of 210m and 5 of BR2

 

[swampratt]

Here is another I shot with a new powder I have never tried. XMR8208 by IMR
target 6 and 7 are the same load just another primer change.

Shot marked with the 8 was NOT weighed on a scale, it was trickeled into a brass case and carded off.
You know the case I speak of.
These are 155Amaxes at 200 yards shot today.

 

[swampratt]

To answer your question of how I shot the 15 shots.
I did NOT shoot all 5 of 1 then shoot all 5 of 2.

I shot 1 bullet from lot 1 at the lot 1 target.
Then I got a bullet from lot 2 and shot lot 2 target.
then lot 3 got a turn.
Then back to lot 1 for the second shot at that target.
I figured this was the best way to do it.

 

[Jedabug92]

To answer your question of how I shot the 15 shots.
I did NOT shoot all 5 of 1 then shoot all 5 of 2.

I shot 1 bullet from lot 1 at the lot 1 target.
Then I got a bullet from lot 2 and shot lot 2 target.
then lot 3 got a turn.
Then back to lot 1 for the second shot at that target.
I figured this was the best way to do it.

Oh. I figured you would have shot all of 1 then all of 2 then all of 3

Sent from the Armory

 

[swampratt]

If I would have done it like that barrel heat, barrel fouling could play favorites with certain groups.
Winds can die down for a certain group and screw up the results.
Or you can get eye fatigue or shooters fatigue on the last group.

 

[Blitzfike]

Looks like a really good test of samples. Good prep and good execution. I sure like to watch your tests and results.. Thanks.. Jim