6mm Calibers - Velocity Comparison ONLY

M Rosslee

Well-Known Member
Joined
Feb 15, 2016
Messages
64
Location
South Africa
Hi all

Can somebody furnish me with the maximum optimal running velocities for 100gr projectiles in the following 6mm calibers in a 24" barrel length:

6 x 47 Lapua

6mm Bench Rest (6mmBR)

6mm XC

6mm Dasher

243 Winchester Magnum

243 Ackley Improved



Thank you.
 
I run 105 gr bullets in,
6br = 2930 average 29" barrel
6AI = 3390 average 26" barrel

Groups shot at 200 yards.
 

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You didn't list the 6 Creedmoor, but it's one of the most popular 6mm for PRS comps. Photo 1 with the tape is at 780 yards and picture 2 is at 600 yards. FPS 3168. 42 grains of H-4350 and 105 Berger Hyb's.
 

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Bartlien Med Palma 26" I have dropped my load to 3095 FPS, 41.5 to comply with PRS rules on FPS Here is the rifle, it's topped with a Vortex Gen 2, ebr 2c reticle milrad now.
 

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