Having a ES of 90fps is indication that you're not in a accuracy node, which i think is skewing your results. I've reloaded a lot of 223 for F-class and varmint shooting and you should be able to get your ES down to at least 10-20 for 5 shots and those 5 shot groups would hold 1/4 to 3/8 MOA. For my F-class rifle a 20 shot group had an ES was in the 30's to 40's depending on the rifle I've done this same test also and sorting brass improves my ES and improved my groups.
@@andy347495 very nice! I too am a HM in F Class midrange, a EX at Long Range, and this load in my Service Rifle took me to HM in that as well! i always "believe the target" over a chronograph or what's "supposed" to shoot good. I always kid and say "there's no awards handed out for best chronograph readings, only 10's and X's" That being said, the Service Rifle target is a lot more forgiving than the F Class, and not quite as much accuracy is needed to clean a target.
@@andy347495 no, with this load I shot High Master scores in NRA Service Rifle competition. However, the load I made HM with in Midrange F Class (F/TR) was with Hornady 168 A-Max bullets and IMR 4064 powder (certainly not considered a “winning combination” at all). My ES was not outstanding with that load either, but was better than what I typically get out of my gas gun.
It looks like you compared groups shot with different case capacities. That is essentially the same thing as doing a powder charge weight test. Wouldn't mixing those two weights together and comparing the groups and ES from them to the sorted brass be a more applicable test for to the reason for sorting? If that's what you did and I missed I apologize.
if you notice in the video, i measured where each group impacted from the vertical and horizontal lines on the target, which showed if one group would've landed inside or outside the other group.
I guess your test was not a good one not knowing the history of the brass. You know it would have been better from the same lot and same number of firings. You really have to have weight differences smaller than your difference for the real tight groups. All of them need to be weighed and the closest in weight along side the other and shoot them in that order to see the difference in weighing. Tedious but it works. And the bullets have to have their weights the same more so than the cases. You are shooting good bullets that don't need to be weighed. But honestly if you are not shooting bullets from a good manufacturer bullet weights can be a factor as well and may need to be weighed too.
I actually believe quite the opposite. I think bullet weight has very little to do in the whole scheme of things. If you have access to a ballistics calculator, change the weight of a bullet by 5 grains and see what that does to the trajectory at long range. Then change the velocity by 10 fps and see what that does. It might really surprise you!
Having a ES of 90fps is indication that you're not in a accuracy node, which i think is skewing your results.
I've reloaded a lot of 223 for F-class and varmint shooting and you should be able to get your ES down to at least 10-20 for 5 shots and those 5 shot groups would hold 1/4 to 3/8 MOA. For my F-class rifle a 20 shot group had an ES was in the 30's to 40's depending on the rifle
I've done this same test also and sorting brass improves my ES and improved my groups.
very cool! what is your shooter's classification in F-Class?
@@stricklyreloading8494 high Master for midrange and sharp shooter for long range.
@@andy347495 very nice! I too am a HM in F Class midrange, a EX at Long Range, and this load in my Service Rifle took me to HM in that as well! i always "believe the target" over a chronograph or what's "supposed" to shoot good. I always kid and say "there's no awards handed out for best chronograph readings, only 10's and X's" That being said, the Service Rifle target is a lot more forgiving than the F Class, and not quite as much accuracy is needed to clean a target.
@@stricklyreloading8494 you shot high Master scores in F-class with the load on the video?
@@andy347495 no, with this load I shot High Master scores in NRA Service Rifle competition. However, the load I made HM with in Midrange F Class (F/TR) was with Hornady 168 A-Max bullets and IMR 4064 powder (certainly not considered a “winning combination” at all). My ES was not outstanding with that load either, but was better than what I typically get out of my gas gun.
It looks like you compared groups shot with different case capacities. That is essentially the same thing as doing a powder charge weight test.
Wouldn't mixing those two weights together and comparing the groups and ES from them to the sorted brass be a more applicable test for to the reason for sorting?
If that's what you did and I missed I apologize.
if you notice in the video, i measured where each group impacted from the vertical and horizontal lines on the target, which showed if one group would've landed inside or outside the other group.
I guess your test was not a good one not knowing the history of the brass. You know it would have been better from the same lot and same number of firings. You really have to have weight differences smaller than your difference for the real tight groups. All of them need to be weighed and the closest in weight along side the other and shoot them in that order to see the difference in weighing. Tedious but it works. And the bullets have to have their weights the same more so than the cases. You are shooting good bullets that don't need to be weighed. But honestly if you are not shooting bullets from a good manufacturer bullet weights can be a factor as well and may need to be weighed too.
I actually believe quite the opposite. I think bullet weight has very little to do in the whole scheme of things. If you have access to a ballistics calculator, change the weight of a bullet by 5 grains and see what that does to the trajectory at long range. Then change the velocity by 10 fps and see what that does. It might really surprise you!