Ladder with magnetospeed and RAS?
- Thread starter Link
- Start date
CaptainMal
Silver $$ Contributor
Yes. Very undesirable.
You start with that RAS tuner/brake just above the "0" mark. Then, in groups of two shots, move it a smidgen out for each test. Bet you get 4 movements between each graduation. All this is done with the SAME LOAD. Now to do a ladder test while tuning the tuner probably will not yield results like a change in powder amount. The tuner literally "makes" a node, not a velocity change.
You tune at long range without a velocity change and all you should see is an impact change as you change barrel harmonics. Now if you add the Magnetspeed you screw the whole thing up. It's like another moving weight changing harmonics.
In summary, first find a load with a decent ES. That's when you use that Magnetospeed. After that, chuck that thing and use that same load for all your tuner testing.
You start with that RAS tuner/brake just above the "0" mark. Then, in groups of two shots, move it a smidgen out for each test. Bet you get 4 movements between each graduation. All this is done with the SAME LOAD. Now to do a ladder test while tuning the tuner probably will not yield results like a change in powder amount. The tuner literally "makes" a node, not a velocity change.
You tune at long range without a velocity change and all you should see is an impact change as you change barrel harmonics. Now if you add the Magnetspeed you screw the whole thing up. It's like another moving weight changing harmonics.
In summary, first find a load with a decent ES. That's when you use that Magnetospeed. After that, chuck that thing and use that same load for all your tuner testing.
Yes, attaching it will change the barrels harmonics.
Now if you are just looking to find a velocity and then use the tuner to close it down then go for it but I wouldnt consider that a proper load work up. Find a load and then use the tuner to tweak a hair this way or that. It will be way less frustrating for you.
If youre going to shoot with it on then install it first. If you dont do your load development with your barrel in the configuration that you will shoot it in then why even bother developing a load? Just dont fiddle with it in the middle of doing your load work up.
Once youve found a load then use the magneato to get your velocity numbers. A sporter may not be able to clear it but the v3 should have ample room to accommodate the tuner. After youve established that as your baseline then you can start to turn the tuner. A tuner can make a good group better but it cant make up for poor load development.
Once youve found a load then use the magneato to get your velocity numbers. A sporter may not be able to clear it but the v3 should have ample room to accommodate the tuner. After youve established that as your baseline then you can start to turn the tuner. A tuner can make a good group better but it cant make up for poor load development.
Link! NO! Do the ladder with nothing on the barrel, then tweak it with the tuner, then record the velocity with the magnetospeed, then take the magnetospeed off..... forever.
You are fooling with barrel harmonics, anything on the barrel, even your finger, will change them. The barrel vibrates and you are trying to get the bullet to exit the muzzle at the same point of vibration every shot....... that's the reason for the ladder test.
Bill
You are fooling with barrel harmonics, anything on the barrel, even your finger, will change them. The barrel vibrates and you are trying to get the bullet to exit the muzzle at the same point of vibration every shot....... that's the reason for the ladder test.
Bill
dmoran
Donovan Moran
Myself have done it both ways, and find both ways works, but have came to the opinion that tuner off for initial load development has worked better for me, that consequently keeps the tuner more honest and repeatable.
Donovan
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Interesting, I would have figured that the tuner would have altered the harmonics but I guess it doesnt alter them so much so that the tuner cant easily compensate for the difference? Good to know. I guess treating it like a normal brake is a miscorrelation.
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My post was misleading....... you do the ladder with the tuner/brake on the barrel. Just don't adjust it till you have nodes. The ladder test is done with the barrel configuration the way your are going to shoot, hunt, or compete with the rifle. Then tweak your groups with the tuner and OAL.
Bill
Bill
Link
Silver $$ Contributor
Above is my next step at 300 the top targets were to see what the tuner would do. I was about out of ammo but I did have some loaded with 33.5 gr and that was where I would have started, looking at the ladder. With no change on the tuner I shot a really good group FOR ME. I welcome as much feedback as I can get. thanks Link
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