Seating depth for better accuracy

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25 May 2014, 17:58

ted thorn

Seating depth for better accuracy

Let's say you have the pressure worked up to a spot your happy with amd your at maximum length for your mag box.

Your shooting 1.5" groups and wouldn't mind tweaking a bit.

At what intervals do you change seating depth on a hunting rifle load?

I'm thinking .020 but thought I would ask

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25 May 2014, 18:55

woods

IMO you can see a difference at .010" but I usually change .015" at a time.

Your .020" may be better cause you can cover a wider range

Be sure and keep track of your velocities for calculating the extreme spread and standard deviation. If there is a seating depth that has the lowest of these 2, even though it may not have the best group, you should fine tune around that seating depth

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There are those who would misteach us that to stick in a rut is consistency - and a virtue, and that to climb out of the rut is inconsistency - and a vice.
- Mark Twain |

Chinese Proverb: When someone shares something of value with you and you benefit from it, you have a moral obligation to share it with others.

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26 May 2014, 04:36

Snellstrom

Ted I sent you an article by e-mail from Berger bullets that recommends .040 intervals.
.010 off the lands .050 off the lands .090, .130 etc.

26 May 2014, 05:48

ted thorn

I got your email and I'm putting a batch together on .040 steps to shoot tomorrow

Thanks Snell

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Maker of The Frankenstud Sling Keeper
Proudly made in the USA
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26 May 2014, 07:55

graybird

I remember some ole boy giving me the heat about shooting so much a few weeks ago. Hmmmmm?

Graybird

"Make no mistake, it's not revenge he's after ... it's the reckoning."

27 May 2014, 00:09

ted thorn

Gotta be Karma

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Maker of The Frankenstud Sling Keeper
Proudly made in the USA
Acepting all forms of payment