Case capacity(water) -

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Forums > 6BR, 6BR Improved & Wildcats > Case capacity(water)

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cappi

01/23/05

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Can anyone tell me the case capacity (in grains of water) of the 6MM BR and the 6MM Dasher? Thank you

6Dasher

01/23/05

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Hi,

My 6Dasher holds 41.3gr of water using Lapua brass.

jim

mikecr

01/23/05

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I measured 200 std 6br Lapua cases after fireforming once in a std chamber. I got 39grH20 +/-.3gr. I kept those which were +/-.1gr for group shooting.

dmoran

01/24/05

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Cappi,

I measured a few before fire-forming and then again after:
Lapua Brass / .271 Neck:

Before = 37.2gr
After = 40.7gr
Difference = 8.6% / 3.5gr

On a side note here, capacity will very from chamber to chamber and from different lots of brass.

Happy Shooting
Donovan

Moderator

09/19/06

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My 6BR after firing and FL sizing in a Redding die is 38.4 grains H20, with a spent primer in the case. As others have noted, that number will vary slightly depending on brass lot, chamber dimension, and how tight your FL sizing die is.

techshooter

09/19/06

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Cappi:

My Dasher measures 41.6 grains H2O, Lapua Brass, Dave Kiff reamer, 0.272" neck.

Cheers,

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