Seating Off The Lands

onehitwonder · February 28, 2009, 06:47 PM

In what graduations should I seat my bullets off the lands? I plan on starting with .02 off. Should I go to .03 .04 .05 or skip around .04 .06 .08? Or greater graduations?

Wildalaska · February 28, 2009, 06:52 PM

I personally always loaded to book legnth first (if available) then once I got a nice bullet/powder combo, tried varying seating depth thereafter.

WildbutthatsmeAlaska ™

onehitwonder · February 28, 2009, 07:03 PM

I have already built a load that I get sub moa accuracy . just want to tweak it a lil without using a lot of powder primers n bullets.

Wildalaska · February 28, 2009, 07:06 PM

Caliber? Group size? Number of shots in group? Std deviation?

If I can get sub MOA I leave the load alone and work on myself

WildimmoreimportantthanseatingdepthAlaska ™

onehitwonder · February 28, 2009, 07:10 PM

browning a bolt. 222 50gr hornady v-max, varget, cci primer, 5 shot group .85

Wildalaska · February 28, 2009, 07:30 PM

Velocity? std deviation?

WildgetatriggerjobAlaska ™

Ed_ · February 28, 2009, 08:06 PM

You need a chrony to get the Velocity and deviation numbers

Nnobby45 · February 28, 2009, 08:17 PM

.30 Calibers tend to shoot better just touching the lands--but not always. Other calibers at 20 to 30 thousandths.

If you start at the lands with a safe load, then you'll be decreasing pressure slightly as you go farther away. I'd start in the lands, then .020, then .030.

If you have a rifle with lots of free bore, you can't get close to the lands. Just make sure the bullet is seated deep enough to be secure.

By lands, I mean barely touching---not jammed in there for the benefit of any inexperienced hand loaders out there.

onehitwonder · February 28, 2009, 08:24 PM

I would have to look up the numbers but it was a mid range load out of the hornady manual. no chrony

February 28, 2009, 06:47 PM	#1
onehitwonder Member Join Date: July 8, 2008 Posts: 97	Seating Off The Lands In what graduations should I seat my bullets off the lands? I plan on starting with .02 off. Should I go to .03 .04 .05 or skip around .04 .06 .08? Or greater graduations? __________________ " Take your children hunting when they are young and they will hunt for less when they are older "

February 28, 2009, 07:03 PM	#3
onehitwonder Member Join Date: July 8, 2008 Posts: 97	I have already built a load that I get sub moa accuracy . just want to tweak it a lil without using a lot of powder primers n bullets. __________________ " Take your children hunting when they are young and they will hunt for less when they are older "

February 28, 2009, 07:10 PM	#5
onehitwonder Member Join Date: July 8, 2008 Posts: 97	browning a bolt. 222 50gr hornady v-max, varget, cci primer, 5 shot group .85 __________________ " Take your children hunting when they are young and they will hunt for less when they are older "

February 28, 2009, 08:24 PM	#9
onehitwonder Member Join Date: July 8, 2008 Posts: 97	I would have to look up the numbers but it was a mid range load out of the hornady manual. no chrony __________________ " Take your children hunting when they are young and they will hunt for less when they are older "

February 28, 2009, 06:52 PM	#2
Wildalaska Junior member Join Date: November 25, 2002 Location: In my own little weird world in Anchorage, Alaska Posts: 14,172	I personally always loaded to book legnth first (if available) then once I got a nice bullet/powder combo, tried varying seating depth thereafter. WildbutthatsmeAlaska ™

February 28, 2009, 07:06 PM	#4
Wildalaska Junior member Join Date: November 25, 2002 Location: In my own little weird world in Anchorage, Alaska Posts: 14,172	Caliber? Group size? Number of shots in group? Std deviation? If I can get sub MOA I leave the load alone and work on myself WildimmoreimportantthanseatingdepthAlaska ™

February 28, 2009, 07:30 PM	#6
Wildalaska Junior member Join Date: November 25, 2002 Location: In my own little weird world in Anchorage, Alaska Posts: 14,172	Velocity? std deviation? WildgetatriggerjobAlaska ™

February 28, 2009, 08:06 PM	#7
Ed_ Member Join Date: January 27, 2009 Location: Southwest Missouri Posts: 96	You need a chrony to get the Velocity and deviation numbers

February 28, 2009, 08:17 PM	#8
Nnobby45 Senior Member Join Date: November 20, 2004 Posts: 3,150	.30 Calibers tend to shoot better just touching the lands--but not always. Other calibers at 20 to 30 thousandths. If you start at the lands with a safe load, then you'll be decreasing pressure slightly as you go farther away. I'd start in the lands, then .020, then .030. If you have a rifle with lots of free bore, you can't get close to the lands. Just make sure the bullet is seated deep enough to be secure. By lands, I mean barely touching---not jammed in there for the benefit of any inexperienced hand loaders out there.