How far off the lands?

[mjac]

For those who reload for a 7mm08 Tikka. How far off the lands are you seating your bullets? Or are you?
TIA

 

[Rubberduck270]

.010" is pretty common, some jump them farther while other like to touch the lands. It may come down to what will fit in your magazine though.

What bullet are you using?

 

[mjac]

Rd,

I am using Hornady 139g SP Interlock flat base (manufactures #2820)

Measuring the COAL of this bullet in a split case dummy rd the COAL is 2.292 to the lands.
The longest rd I can squeeze in the mag would have a 2.233 COAL. A difference of .059 which seems to be way out of the ranges I have been reading of.
Btw, a factory rd using the same bullet measures 2.208 COAL. A greater difference of .084.

It this common?

 

[Rubberduck270]

I think you're measuring wrong. You should be closer to 2.80" for a COAL

 

[mjac]

I think you're measuring wrong. You should be closer to 2.80" for a COAL

You are correct. I was using the wrong term. Duh.
I am using a bullet comparator and the measurements stated earlier are from the bullet ogive.
The correct COAL would be 2.874 to lands
Longest to fit in mag would be 2.806, a .068 difference.
Factory bullet would be 2.772

 

[Rubberduck270]

Load them to mag length and see how they shoot. 2.800" is SAAMI spec on a 7-08. I've seen some whittle on their magazines to fit a longer COAL but depending on how it shoots you may not want to go that far.

 

[Deer Assassin]

all of my 700 sa rifles are 2 shot


i seat to .010 off
i load one up and one on the ramp

 

[7mm08]

This was my COAL data sheet IF you can read my handwriting.
7mm08 remington 700 Buckmaster edition. Nothing fancy but kills deer!

 

[mjac]

7mm08,
Thanks.

 

[vixty]

I just worked up some loads for my wifes tikka 7mm-08 ss and found in order to get the COL where I needed it I had to convert the bolt to a long action and use my 300wm magazine. I was shooting barnes 110gr 44.3 gr of varget in a clover leaf at 100 yards. If I can remember right that was .005 off the lands. I'm about to start testing some 120gr v max bullets here soon and will probably start at the same .005 off the lands. I'll try to report back once I get some data.

 

[mjac]

Vixty,
Thanks.

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