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Joined: Jun 2011
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Campfire Outfitter
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Campfire Outfitter
Joined: Jun 2011
Posts: 10,812 |
Did you run the ladder up until you hit pressure?
I started at 69 grains with the 139 scenar and didn't hit pressure until 72.5 or 73 in the .264 WM
You may find a node above 69 grains
The people wringing their hands over Trump's rhetoric don't know what time it is in America.
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Joined: Jan 2006
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Campfire Tracker
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Campfire Tracker
Joined: Jan 2006
Posts: 4,699 |
Usually I shoot my ladders at a minimum of 300 and mostly 500 or further. Reading the wind and getting a constant wind or even consistent direction is tough. Also a ladder test is based off the harmonics of the barrel and finding that sweet spot which is why when you find the shots that have the least vertical then you retest for group size within the given node and fine tune from there. This is just how I start my tests. Others may do it different. Thanks for a straight up, honest answer!
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Joined: Nov 2003
Posts: 28,846
Campfire Ranger
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Campfire Ranger
Joined: Nov 2003
Posts: 28,846 |
rcamuglia, Did you run the ladder up until you hit pressure?
I started at 69 grains with the 139 scenar and didn't hit pressure until 72.5 or 73 in the .264 WM
You may find a node above 69 grains No. I thought it would max out before I fired the 69.5. I guess I could start at 69.0 and run up to 73.0 to see what happens.
"Only Christ is the fullness of God's revelation."
Everyday Hunter
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Joined: Jun 2011
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Campfire Outfitter
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Campfire Outfitter
Joined: Jun 2011
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Ya gotta run the ladder all the way until you hit pressure!
The people wringing their hands over Trump's rhetoric don't know what time it is in America.
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Joined: Jan 2009
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Campfire Outfitter
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OP
Campfire Outfitter
Joined: Jan 2009
Posts: 11,518 |
Ya gotta run the ladder all the way until you hit pressure! Tell me how and where I should see pressure.
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Joined: Nov 2003
Posts: 28,846
Campfire Ranger
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Campfire Ranger
Joined: Nov 2003
Posts: 28,846 |
Ya gotta run the ladder all the way until you hit pressure! You got it. I am encouraged again. One of my friends, I have only a couple, called me the eternal optimist. 
"Only Christ is the fullness of God's revelation."
Everyday Hunter
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Joined: Jun 2011
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Campfire Outfitter
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Campfire Outfitter
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Ya gotta run the ladder all the way until you hit pressure! Tell me how and where I should see pressure. Depends on chambering, bullet, powder, throat configuration, nominal bore diameter..... And more. How the he ll should I know what you're shooting!?!?! When running a ladder, you have to do a little research on load data. If there is none available with the components you are using, you have just become your own ballistician. Start low and work up to pressure! Traditional signs include sticky bolt lift, ejector marks on the case head, etc... It's not that tough!
The people wringing their hands over Trump's rhetoric don't know what time it is in America.
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