6.5 creedmoor grouping
- Thread starter Marctitty
- Start date
Leec6.5
Well-Known Member
Why waste the bullets?3 shots dont constitute as a group
3 shots is good enough for me and has done for all the years of shot a rifle, if I have to check zero on the rare occasion, it’s one shot only a second or third if I have to make adjustments never any more than that
kenbro
Well-Known Member
This. ^
And your groups never go smaller by firing more than 3 rounds.
Ken.
Depending on barrel profile you may also then end up chasing heat deflection so the groups you have are spot on. I mean deer at the ranges you want 2moa be fine so you are well within that!
Only thing is pick a load, make up 5 stick them over the chrono. While not a statistically large sample group, if they group then the SD isn’t a key performer. People sometimes try rabbit hole when they have something sufficient. And yes I am guilty of this! My 308 stalking rifle can group at 1/2-1/4 moa (1st shot is my zero, next three are always 1/2 inch high right as the barrel warms but groups well but I know this so adjust POA after 1st shot ) . but that was luck with the first load I tried. My PRS rifle took a lot more fettling to get a low SD and 1/4moa grouping which just isn’t needed for stalking.
Only thing is pick a load, make up 5 stick them over the chrono. While not a statistically large sample group, if they group then the SD isn’t a key performer. People sometimes try rabbit hole when they have something sufficient. And yes I am guilty of this! My 308 stalking rifle can group at 1/2-1/4 moa (1st shot is my zero, next three are always 1/2 inch high right as the barrel warms but groups well but I know this so adjust POA after 1st shot ) . but that was luck with the first load I tried. My PRS rifle took a lot more fettling to get a low SD and 1/4moa grouping which just isn’t needed for stalking.
Leec6.5
Well-Known Member
Just had a snout at the ballistics website, poor mans QL
like it
Those are all essentially part of the same group - there is effectively no measurable variation in either group size or point of impact.
This means you have a good set up and can shoot consistently. There is absolutely no need to worry about which load is the most accurate - they all are.
So pick the one that gives you the terminal performance you want.
Foxyboy43
Well-Known Member
As if by magic!
First thing is your groups are all minute of deer, a bit of fine tuning with your zero and relax….
Sierra 130TGKS are a great round- I seat mine very long but that is in the 6.5x55SE and drive them at c.2750 fps. Nothing has gone on, period!
By all means experiment with your loads but do be very alert to any pressure signs as you work up…..
PMax works really well for rough guides long as it has the powder you want. I have a Mac and can’t be arsed with a windows dual boot in order to run QL or GRT.Just had a snout at the ballistics website, poor mans QL
Leec6.5
Well-Known Member
You’re like me, feral reloading, it gives you a lovely rule of thumb
Quick load gives you too much BS to think about, just ran my Barnes load through and with the point of aim from my rifle with lead compared to copper it’s nearest dammit so hazard I guess the speed is about the same I’ll do me but it certainly a banker
not saying much about feral reloading however I was told this chap also reloads his 6.5 cmYou’re like me, feral reloading, it gives you a lovely rule of thumb
Quick load gives you too much BS to think about, just ran my Barnes load through and with the point of aim from my rifle with lead compared to copper it’s nearest dammit so hazard I guess the speed is about the same I’ll do me but it certainly a banker
I just go off the recommended from Viht app and double checking Pmax. It’s pretty good on velocities usually a few FPS out but not many. Am usually inside the Viht estimates by a long way bar one of my rifles but I know the pressure signs so keep an eye on it.You’re like me, feral reloading, it gives you a lovely rule of thumb
Quick load gives you too much BS to think about, just ran my Barnes load through and with the point of aim from my rifle with lead compared to copper it’s nearest dammit so hazard I guess the speed is about the same I’ll do me but it certainly a banker
You dont, they expand well even at low velocity. Even at creedmoor speeds they're easily capable of full expansion out beyond 500 yards. They're designed as a long range bullet so they tend to be slightly softer
Very interesting, I'd love to see where Sierra described them as a soft long range bullets
Foxyboy43
Well-Known Member
3 shot groups are fine to start with- they don’t necessarily tell you the perfect load, but they do show a load that’s no good- why waste ammo that shows a 1.5moa group after 3 shots.
My load development on my 6.5 is complete now and I’m very happy with the results. This is a 11 shot group at 100 yards. The first three were literally on top of each other. If I slowed down and let the barrel cool I’m sure it would be tighter
My load development on my 6.5 is complete now and I’m very happy with the results. This is a 11 shot group at 100 yards. The first three were literally on top of each other. If I slowed down and let the barrel cool I’m sure it would be tighter
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What bullet and powder are you useing for those results please much appreciated
140g eldm n555
May be worth a try one day that’s for your advice
Not really worth developing a load for eldm unless you plan to shoot it a lot in the next 3 years!
True
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