I got a 4" 5 shot group at 1048 yards doing most all that silly stuff with a factory rifle And as y'all say 3/4" 5 shot groups @ 219 yards all day loooong.
Ringman, You need to keep your components the same or as much as possible. The ONLY variation needs to be your powder levels. From what I've seen you're not consistent with the equipment, and or pulling shots. Like Rick said, adjust your powders and when you get signs of pressure stop!!!!
Then you need to look at your target....these guys are truing to help you but it doesn't seem to be getting through. It is pretty frustrating at first I will admit. Stay the course and keep it simple....
I got a 4" 5 shot group at 1048 yards doing most all that silly stuff with a factory rifle And as y'all say 3/4" 5 shot groups @ 219 yards all day loooong.
You do realize that nothing you've posted supports your contention that weighing charges to the nearest .01 grain makes a difference?
I've never read or seen anything to support that. Don't you think that if weighing charges that precisely mattered, then all the competitive benchrest shooters would be doing it? How is it that they're not, and you're the only one who's ever reaped the benefits of your technique?
And aren't you the same guy who was touting the fact that you weighed your H-1000 to the nearest 0.02 grain? Only to find out that a single kernel of H-1000 weighs .04 grains?
All this talk has me thinking axtell might be right. I'm gonna institute some changes to take my loading and long range accuracy to the "Next Level"
I just bought a Gempro jewler's scale
I'm gonna run a 20 shot ladder on my Win Mag between 75.9 grains of H-1000 to 76.1 grains.
In case I find a node between 1/100ths of a grain, I figured I'd use a nail clipper to cut a kernel of H-1000 in half of less to really nail down the load
My Gempro is less accurate than both my Redding and RCBS beam scales. Just saying....
With all this chatter, you guys must not have anything to do in Sept. We`re all hand loaders.....IME, All hand loaders can do some funny things.....in this case,does not mean it`s wrong.
I got a 4" 5 shot group at 1048 yards doing most all that silly stuff with a factory rifle And as y'all say 3/4" 5 shot groups @ 219 yards all day loooong.
You do realize that nothing you've posted supports your contention that weighing charges to the nearest .01 grain makes a difference?
I've never read or seen anything to support that. Don't you think that if weighing charges that precisely mattered, then all the competitive benchrest shooters would be doing it? How is it that they're not, and you're the only one who's ever reaped the benefits of your technique?
And aren't you the same guy who was touting the fact that you weighed your H-1000 to the nearest 0.02 grain? Only to find out that a single kernel of H-1000 weighs .04 grains?
A kernel of H-1000 weights ~0.02gr, my scale defines to 0.02gr so there can be an error of up to +/- 0.04grs. This is as close as I can get with the equipment I have, so why not, its about managing the variables. A nice tight 3 shot group looks good but what will it do at long range? I seen nice tighties like that fall apart at 1000yds, not always mind you. Is using a Lee powder dipper to get good results the way to go?
Back in college chemistry, we had scales in Quantitative Analysis with glass door we had to close to get a reading. Air movement in the room would throw them off...
Ok, now reduce the COL 0.040" 58.00gr 58706 psi 2804fps
My contention is that small variances in powder weight and different lots, bullet weight, case volume, COL, primer brands and different batches of same, neck tension and all that goes with it make a cumulative difference.
So the question might be for any individual were do you sign off on the process?
In my experience I took a factory rifle that would print ~14" at 1000yds and brought it down to 4" for 5 shots. It can do better but I have not been able to lower my ES enough yet.
My contention is that small variances in powder weight and different lots, bullet weight, case volume, COL, primer brands and different batches of same, neck tension and all that goes with it make a cumulative difference.
Now we're getting somewhere. Calculate the difference in pressure and velocity resulting from a .01 grain variation in powder. Then compare that to the difference in pressure and velocity due to small variations in the variables you listed plus others such as changing barrel and chamber temperatures from one shot to the next.
No matter how carefully one loads his ammo, there are going to be slight differences in muzzle velocity round to round...
Translation: You can weigh your charges to the individual kernel of powder and it will not make your muzzle velocities identical. There is absolutely nothing you can do to make shot to shot muzzle velocity identical.
Even if it was possible to do so, there would be no guarantee that your rifle would shoot in one hole at long range or even group with zero vertical. Barrel harmonics have more to do with good groups and zero vertical than does a constant velocity.
If the bullet is coming out of the muzzle at the exact same velocity every time, but at the WRONG TIME DURING BARREL MOVEMENT, your groups and vertical will suck.
Quote
Improving accuracy by compensating for small variations in muzzle velocity.
Smaller Groups Left of the Peak - UPWARD SLOPE: Higher velocity shots exit early while pointing lower at the target but drop less in reaching the target. Lower velocity shots exit later while pointing higher at the target but drop more in reaching the target. Counteracting combination. Good.
Larger Groups Right of the Peak - DOWNWARD SLOPE: Higher velocity shots exit early while pointing higher at the target and drop less in reaching the target. Lower velocity shots exit later while pointing lower at the target and drop more in reaching the target. Bad additive combination. Bad.
Kinda tough to hit targets this size if you have a bunch of vertical in your load. The Audette eliminates vertical.
Seems to have worked at 1150
Originally Posted by Bristoe
The people wringing their hands over Trump's rhetoric don't know what time it is in America.
Agree, there will always be variances. The challenge is to mitigate those variances as best as possible. This is my goal in hand loading for long range. So, in practice (barring mechanical issues) the group of cartridges that generate the same pressure every time and exit the barrel on a 'node' will be the most consistent. This will show up on the chronograph (low ES) and be translated to the target (small groups). I am not arguing the Audette method doesn't have merit, its just that I like to have science to explain things.
I hope you understand that weighing to the thousandth is an exercise in futility. If the load is in the node, upward slope barrel movement will counteract small variances in muzzle velocity and make all the POI as similar as possible.
Thanks!
Originally Posted by Bristoe
The people wringing their hands over Trump's rhetoric don't know what time it is in America.