Load development input needed.

[oldandslow]

Looking at my target loads...where would you go next? Most of the needed info should be on the target. Ignore the center group. That was a fouler . 223 caliber hope im in the right area!

 

[oldandslow]

Looking at my target loads...where would you go next? Most of the needed info should be on the target. Ignore the center group. That was a fouler . 223 caliber hope im in the right area!View attachment 1013493

Erik Cortina says follow the lower ES

 

[dan belisle]

24 gr looks pretty good. Load up 10 or 15 more and see how they do enmasse. - dan

 

[oldandslow]

Yes. I think i will explore loads between that and the bottom left...they are 3 grains apart...I may also throw in some same loads with a 7 1/2 primer as opposed to the cci450. Thanks for your reply!

 

[todbartell]

Erik Cortina says follow the lower ES

Comparing ES of a handful of charge weights is going to show some good, some bad. Repeat test and the results will likely flip flop due to the small sample size of 5 rounds per charge. I've shot excellent groups inside 200 meters with ammo that had absolute brutal SD/ES

 

[oldandslow]

And thats why I'm here...trying to get my head around it...that being said. That man is an amazing shooter

 

[Poper10]

My take on this is, i would try the heaviest bullet first to have a constent burn rate.
Depending on the powder choice, you can acheived great results with higher bc bullet and constent burn rate.

 

[oldandslow]

My take on this is, i would try the heaviest bullet first to have a constent burn rate.
Depending on the powder choice, you can acheived great results with higher bc bullet and constent burn rate.

Care to elaborate a little further...

 

[Poper10]

Care to elaborate a little further...

In my experience with loading, heavier bullet seems to have the powder burn more efficiently.
A good tool that i used is Gordon Reloading tool.
It's a program i run the loading with and try different bullet and powder.
In my 30-06, for exemple, i have fond that running with 208g hornady with superformance it give me an sd of 5fps and a es of 16 across 5 shotgun.
100% burn powder and 92%case capacity.
The less empty space In the load développement, the tighter the sd is.

 

[oldandslow]

In my experience with loading, heavier bullet seems to have the powder burn more efficiently.
A good tool that i used is Gordon Reloading tool.
It's a program i run the loading with and try different bullet and powder.
In my 30-06, for exemple, i have fond that running with 208g hornady with superformance it give me an sd of 5fps and a es of 16 across 5 shotgun.
100% burn powder and 92%case capacity.
The less empty space In the load développement, the tighter the sd is.

My reading also suggests a fuller case is better! I do plan to try some 75 bthp soon. I'm considering ramshot Tac as the powder. Are you familiar with 223 loading?
Also...the groups above have cases that are substantially filled...

 

[Poper10]

My reading also suggests a fuller case is better! I do plan to try some 75 bthp soon. I'm considering ramshot Tac as the powder. Are you familiar with 223 loading?
Also...the groups above have cases that are substantially filled...

I dont have experience with 223.
In my loading, i load 308w ,30-06, 65 creedmoor, 325 wsm and 7mm RUM.
In most case, the heavier bullet match with the right powder have lower es.
By having the case filled with 90 to 96% case, you reduce the air inside the case..
Air is compressible and varying with tempeture. That is where the variation In sd comes In my opinion.

 

[Poper10]

I quickly look at my nosler reloading book and IMR 4064 with 22.5 grain
look promissing paired with 80g nosler bullet..
It will drop more for ELR Shooting but, it dépend what you intend to do with the load.