Pressure Signs.....

Discussion in 'The Ammo & Reloading Forum' started by AR guy, Nov 27, 2012.

  1. AR guy

    AR guy Member

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    If I dont like what i feel with the TG powder, whats a good decently priced powder for the 9mm. I do have WSF also it was priced good at $24 a lb. a bit more than TG but cheaper than alot. So if i dont like the TG ill save it for when i need it. I did work some samples up with WSF ill be tasting both Sat.
  2. gdmoody

    gdmoody Moderator Supporting Member

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    Excessive pressure signs. I am taking this right out of the 8th edition Hornady manual (page 71)

    1. An increase in case head expansion as measured by a very accurate micrometer.

    2. Hard or sticky extraction from the chamber of the firearm.

    3. Flattened primers (the rounded edges of the primer are now flattened, filling the gap between primer and case head.)

    4. Cratered primers (primer cap material flowing into the firing pin hole.)

    5. Ejector marks on the case head.

    6. Sooty gas leakage around the primer.

    7. Enlarged primer pockets - in the worst cases with the primer blown loose.
  3. AR guy

    AR guy Member

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    Any of those signs and STOP dont go further. Ill definetly be looking. Thanks.
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