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Thread: Lower than expected velocities

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Longrun Lower than expected velocities 04-09-2024, 10:00 AM
Marty Henry Don't believe everything you... 04-09-2024, 10:08 AM
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Oldbloke ADI is giving a maximum of... 04-09-2024, 12:29 PM
Longrun This was hogdon load data and... 04-09-2024, 12:43 PM
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grandpamac Greetings Longrun and all, I... 04-09-2024, 04:18 PM
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Fee Knicks Your most accurate load will... 04-09-2024, 05:50 PM
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Longrun :D 04-09-2024, 06:47 PM
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Tech That thought has crossed my... 07-09-2024, 04:33 PM
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No.3 Which is where it can get... 05-09-2024, 07:36 PM
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grandpamac Greetings Micky Duck and all,... 06-09-2024, 09:19 AM
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grandpamac Greetings Jhon, I just keep... 06-09-2024, 12:12 PM
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Longrun I don't think increasing neck... 06-09-2024, 01:00 PM
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grandpamac Greetings, A check through... 08-09-2024, 08:46 AM
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Longrun Book max for w780 is 55.5gr... 08-09-2024, 08:47 AM
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southernman I had a Sako Finnlight in... 15-09-2024, 08:48 AM
  1. #1
    Member
    Join Date
    Dec 2021
    Location
    Auckland
    Posts
    562

    Lower than expected velocities

    Hi,
    First time with garmin chrony.

    25-06 near top of load data.
    100gr hot cor instead of 100gr partition in load data.
    Bullet seated about diameter of bullet into case.

    Recorded velocity 3013fps Data velocity 3300fps

    I appreciate that it's a different bullet that I have seated quite far out. 22inch barrel.

    Questions. Would seating the bullet in further generate much more pressure/velocity?

    Should I increase the charge beyond data to achieve something like 3300fps?

    I have the same story going on with a 6.5 x 55.20inch barrel.
    Also a 250savage that is recording velocities as expected.

 

 

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