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Thread: Primer Charges / POI Shift

  1. #1
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    Primer Charges / POI Shift

    Tried Federal primers in the Hornet tonight behind 12.5gr of Lil Gun and a 35gr V-Max.

    As usual, the V-Max grouped really well with most shots touching at 100 yards but I noticed the POI was significantly higher than usual by around 2"

    I've been using CCI primers (400 & BR2) and wondered if the Federal primers were more powerful? Noticed some muzzle flash too as it started to go dark which is something that I haven't observed before.

    I'll try them over my pal's chronograph when I get chance to see if they have exceeded 2,988fps which is the MV using CCI primers

    .22LR CZ452; .22 Hornet CZ527
    Tikka T3 Varmint .223; .204 Ruger CZ527 Varmint;
    6.5 Creed Bergara B14 HMR

  2. #2
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    Keep us informed. By all accounts the little hornet is sensitive to primers. Too hot and they can knock the head out before lighting the powder. The cci pistol primers. 400 and 500 I believe are the best to use. When they are in stock. By bulk!
    beretta dt10 ,kofs 20b, ESCORT 12g semi-CAMO, 1022 ruger Volquartsen. Cz512 tactical Barton custom. 223 howa 1500 GRS stock

  3. #3
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    Quote Originally Posted by Elliott View Post
    Tried Federal primers in the Hornet tonight behind 12.5gr of Lil Gun and a 35gr V-Max.

    As usual, the V-Max grouped really well with most shots touching at 100 yards but I noticed the POI was significantly higher than usual by around 2"

    I've been using CCI primers (400 & BR2) and wondered if the Federal primers were more powerful? Noticed some muzzle flash too as it started to go dark which is something that I haven't observed before.

    I'll try them over my pal's chronograph when I get chance to see if they have exceeded 2,988fps which is the MV using CCI primers
    Because it's such a small cartridge the hornet is sensitive to everything, if you change primer you get change in POI, if you change brass you get a different poi. That's why I try and load in batches of 100 or 150 now all of the same brass, when my win batch is getting low I switch to loading 100 ppu and rezero.

    I get muzzle flash too with fed 205s
    Thanks for looking

  4. #4
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    Interesting, I've always used CCI 400's but got a sheet of Fiocchi small rifle from a different shop.

  5. #5
    Charlts is offline I'm not the Messiah, I'm King of the Creedbros!
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    Changing primers always se me and I result in a poi change, it's changing the way ignition begins so will change the harmonics, which will change poi.
    The toxicity of lead varies, depending upon the weight of its doseage and its velocity!

  6. #6
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    Change anything, primer brand, case brand, even Lot-number of powder, will likely change a POI.

    Once I find a load that is sweet with the tune of my rifle, I stick to it.

  7. #7
    Parabuteo is offline My Chrony has bought it a couple of times...
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    Not directly connected, but when we went from .308 with LR primers, to the small primer Lapua .308 brass with BR4s, (FTR) we had to add approx .5gr extra to make up for the loss of velocity.
    I'm a maggot in another life you know

  8. #8
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    Have you tried remington 6 1/2 primers? Designed for the hornet and work very well.

    Rick.
    CZ 452 .22 Tikka T3 Varmint Stainless .223
    Zabala 12 bore.

  9. #9
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    Quote Originally Posted by polski View Post
    Have you tried remington 6 1/2 primers? Designed for the hornet and work very well.

    Rick.
    Not tried those, Rick. I'll see if I can source some

    .22LR CZ452; .22 Hornet CZ527
    Tikka T3 Varmint .223; .204 Ruger CZ527 Varmint;
    6.5 Creed Bergara B14 HMR

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