If you use a a microminter seating die makes it so much simpler. Set microminter to max length and then 3 thousands deeper for every three shot groups or two shot groups if the group isn't acceptable. Then when you find what you want just go by micrometer setting instead of measuring over all length.
With most "hunting" bullets, and even most target type bullets, you can start at .020" off the lands, and then work up to OCW, and find a stellar load. Meaning sub 1/2 moa for 5 shots at 100 yards. Doing it this way, you don't waste nearly as many valuable components and you also reduce wear on your barrel.
Hi John. Yes. Erik Cortina says that any load can be adjusted with seating depth. I don't have any individual confirmation of this, but I trust him as a prior F class champion. Check out his video on UA-cam entitled, "chasing the lands is stupid." That's where he mentions it. Since all powders perform differently, it makes sense that the seating depth would need to be adjusted also. Thanks for the comment. I hope you subscribe and keep coming back. Thanks for watching
Here’s a question, when using the hornady chamber tool, you’re using a generic threaded case from hornady? Is that case sized for your chamber? You’re measuring from the base but what if your chamber is longer than the case? Then, isn’t all that work for nothing? Would probably be better to use a case fired in your rifle and sized appropriately, then thread the primer pocket, and use that case for this operation. All in all, I’m of the opinion a lot of these practices don’t make a difference. Like using 3 shot groups to confirm a powder charge as you did. A 3 shot group doesn’t mean anything.
@@sharpandloud3422 thanks for the comment. If you look at my recent videos you will see that I shoot 10 and 20-shot groups. I have also measured the chamber with a fired and sized case with a slit in the neck and an actual projectile. Thanks for watching
Thanks for vid. Maybe consider better calipers. Repeatability of measurement is important. Doubtful husky which probably just licenses to a cheap Chinese manufacturer, lab tests them. Try them out on a good 123 block and see if they are accurate repeatable. The cheap ones can easily be off 1 to 3 1000ths every time you open close and zero. That can be a significant difference when coming close to the lands.
I am getting confused when you say coal vs cbto. I thought you measured cbto, so at 20 thou and 23 thou cbto you got the best group size. That is where you lose me because you start saying coal. So did cbto and coal converge at that point?
Hi Thomas. That is correct. as it turns out, when you have a cartridge overall length (COAL) of 2.8 inches, that puts you almost exactly 20 thousandths to 23 thousands off of the lands in this rifle. Does that make sense? Thanks for watching.
You would still want to use the cbto as your reference point yes? In my case I took a fired case chambered it and the bolt closed easily. So I used a bushing die and closed the case mouth to the point that a bullet would fit snug enough to stay in place. With the bolt removed I gently pushed the case into the chamber and with a wooden dowel through the muzzle pushed back. There was a bit of resistance so I resized until there was none. So I am not at jam, I measured then deducted 20 thousands back, for cbto. Similar to the exercise you did. 42.5 gns imr 4350 20 thou off lands and groove netted a very tight group at 100 yds. I did do a variety of powder charge and seating depths from the origin measurements and that is what got the best results. I think we are on the same page. Thanks again.
It seems like you would want to do that with the bolt, rather than a wooden dowel. The lands and the ogive are sloped so it’s very tricky to know when you’re just touching the lands. You can push a little harder and get jammed into them.
Good Job on your analysis! I love your range. Something to consider: Hodgdon and most other bullet manufacturers that publish loading data publish up to the last known good node before you are in high-pressure ranges. So technically, in most cases, the hard work to determine the seating depth has already been calculated. Unless you're going off the grid and finding the best possible node for your rifle per max headspace (which allows for larger charges), which resides at several nodes. My recommendation is to use this video, and you'll get there a whole lot faster: ua-cam.com/video/oRXlCG9YZbQ/v-deo.html.
You're right. The recommended overall length puts me 20 thousandths off of the lands which gave me my best groups. I will check out that video that you mentioned. Thanks so much for watching.
Yes, I go to this range every Wednesday. It is my favorite place to be away from home. I have seen the video by Eric Cortina before. I subscribe to his channel. One of my favorite creators. Thanks for sharing. And thanks again for watching
If you use a a microminter seating die makes it so much simpler. Set microminter to max length and then 3 thousands deeper for every three shot groups or two shot groups if the group isn't acceptable. Then when you find what you want just go by micrometer setting instead of measuring over all length.
He still have to establish a baseline the old-fashioned way, though don't you? Thanks for watching
@@davidreed6779 who makes a good micrometer seating die for 6.5 Creedmoor? Hornady?
I like Hornady’s micrometer. It’s good because once you have one micrometer you can use it on any other Hornady die
With most "hunting" bullets, and even most target type bullets, you can start at .020" off the lands, and then work up to OCW, and find a stellar load. Meaning sub 1/2 moa for 5 shots at 100 yards. Doing it this way, you don't waste nearly as many valuable components and you also reduce wear on your barrel.
Thanks Bear. With the 140 ELD match loading at the recommended OAL of 2.8"puts me almost exactly .020 off of the lands. Thanks for watching.
Good video. Covered all the bases.
@@teamsix7185 much appreciated. Thanks for watching.
Gr8,,! Very helpful, thank you
Glad you found it helpful. Thanks for watching.
If you change the powder brand or the amount of powder, do you have to redetermine the seating depth ?
Hi John. Yes. Erik Cortina says that any load can be adjusted with seating depth. I don't have any individual confirmation of this, but I trust him as a prior F class champion. Check out his video on UA-cam entitled, "chasing the lands is stupid." That's where he mentions it. Since all powders perform differently, it makes sense that the seating depth would need to be adjusted also. Thanks for the comment. I hope you subscribe and keep coming back. Thanks for watching
Yes
Here’s a question, when using the hornady chamber tool, you’re using a generic threaded case from hornady? Is that case sized for your chamber? You’re measuring from the base but what if your chamber is longer than the case? Then, isn’t all that work for nothing? Would probably be better to use a case fired in your rifle and sized appropriately, then thread the primer pocket, and use that case for this operation.
All in all, I’m of the opinion a lot of these practices don’t make a difference. Like using 3 shot groups to confirm a powder charge as you did. A 3 shot group doesn’t mean anything.
@@sharpandloud3422 thanks for the comment. If you look at my recent videos you will see that I shoot 10 and 20-shot groups. I have also measured the chamber with a fired and sized case with a slit in the neck and an actual projectile. Thanks for watching
Thanks for vid. Maybe consider better calipers. Repeatability of measurement is important. Doubtful husky which probably just licenses to a cheap Chinese manufacturer, lab tests them. Try them out on a good 123 block and see if they are accurate repeatable. The cheap ones can easily be off 1 to 3 1000ths every time you open close and zero. That can be a significant difference when coming close to the lands.
@@JBesq I appreciate the input. Thanks for watching.
Did you have any pressure issues?
@@dwaynebeaty9259 none so far. Thanks for watching
I am getting confused when you say coal vs cbto. I thought you measured cbto, so at 20 thou and 23 thou cbto you got the best group size. That is where you lose me because you start saying coal. So did cbto and coal converge at that point?
Hi Thomas. That is correct. as it turns out, when you have a cartridge overall length (COAL) of 2.8 inches, that puts you almost exactly 20 thousandths to 23 thousands off of the lands in this rifle. Does that make sense? Thanks for watching.
You would still want to use the cbto as your reference point yes? In my case I took a fired case chambered it and the bolt closed easily. So I used a bushing die and closed the case mouth to the point that a bullet would fit snug enough to stay in place. With the bolt removed I gently pushed the case into the chamber and with a wooden dowel through the muzzle pushed back. There was a bit of resistance so I resized until there was none. So I am not at jam, I measured then deducted 20 thousands back, for cbto. Similar to the exercise you did. 42.5 gns imr 4350 20 thou off lands and groove netted a very tight group at 100 yds. I did do a variety of powder charge and seating depths from the origin measurements and that is what got the best results. I think we are on the same page. Thanks again.
It seems like you would want to do that with the bolt, rather than a wooden dowel. The lands and the ogive are sloped so it’s very tricky to know when you’re just touching the lands. You can push a little harder and get jammed into them.
What not one of you seating depth testing doods ever tell us...is... did the groups repeat ??? Means f all if they don't repeat mate
@@dannywarren5204 good point. Thanks for watching
Good Job on your analysis! I love your range. Something to consider: Hodgdon and most other bullet manufacturers that publish loading data publish up to the last known good node before you are in high-pressure ranges. So technically, in most cases, the hard work to determine the seating depth has already been calculated. Unless you're going off the grid and finding the best possible node for your rifle per max headspace (which allows for larger charges), which resides at several nodes. My recommendation is to use this video, and you'll get there a whole lot faster: ua-cam.com/video/oRXlCG9YZbQ/v-deo.html.
You're right. The recommended overall length puts me 20 thousandths off of the lands which gave me my best groups. I will check out that video that you mentioned. Thanks so much for watching.
Yes, I go to this range every Wednesday. It is my favorite place to be away from home. I have seen the video by Eric Cortina before. I subscribe to his channel. One of my favorite creators. Thanks for sharing. And thanks again for watching