Factory 2nd WRE primers testing

stello1001

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  • Feb 20, 2017
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    Corpus Christi TX
    Hello all,

    Today I went to the deer lease to try out some factory 2nds White River Energetics LRM primers. Overall, I am very happy with how they turned out. Originally, I was supposed to take 25 rounds of the same recipe but (but loaded with my regular Wolf LRM primers) as a control and then compare the 2nds against those. However, shit happens and I forgot the control group at home lmfao. 😂😂😂

    To start off, i sent a 5 round group of Hornady 140AG.I still proceeded with sending the 25 rounds loaded with 2nds downrange. I will say though, in my ammo box, I had 4 loaded rounds with 40.7 grains of h4350 vs the test loads (and control loads) of 40.9.

    In my observations, the primers worked really good. Because I didn't have the control group with me, I can't say definitively that the 2nds are hotter. However, I do believe so. In the past, my regular loads with wolf primers have never been that fast. I've also always shot them in hot tx weather. This morning, it was mid 40s when I tested, so if anything, MV should've been on the slower end (but h4350 is pretty stable though).

    The bolt was never heavy or sticky to lift for the first 75%. At the top 25%, it almost stopped a bit but then like "clicked" open. Is this what the famous "clickers" are? If so, is this a sign of over pressure?

    I've had sticky/heavy bolt before from hotter loads. In such instances, the bolt is stick/heavy to lift constantly throughout its entire range. This was different.

    Enough! Below are the pics.

    Start
    20250217_170236.jpg


    25 rounds with factory 2nds primers
    20250217_170204.jpg


    4 rounds that were in my ammo box with Wolf LRM primers
    20250217_170225.jpg



    I also tested some 144 LRHT bullets with H4350 and wolf LRM. The group sizes are nothing to write home about. However, I may have to re-test. I did not realize until I was done that the cardboard those were on was swinging with the wind significantly more than the the cardboard with the 130s. This fucking sucks. So then I sent some Hornady AG 140s on the cardboard with the 130s and they grouped pretty good.

    Shot these @ end of day on more sturdy cardboard.
    20250217_170241.jpg


    The 144s on the loose cardboard
    20250217_165615.jpg




    If anybody cares to comment or give advice/tips, go for it. I welcome it. If not, then enjoy.


    **edit to add**
    Silver dots are half inch, colorful dots are 3/4.
     
    The bolt was never heavy or sticky to lift for the first 75%. At the top 25%, it almost stopped a bit but then like "clicked" open. Is this what the famous "clickers" are? If so, is this a sign of over pressure?
    Sure sounds like it, the boot cycles cleanly until it engages the primary extraction ramp, once it hits that ramp it’s forced to move backwards and it clicks as the base breaks free of the chamber.
    If it’s clicking on reloads that aren’t too hot it’s a lack of base sizing/small base chamber.
    If it’s normal fitting brass then it could be the start of pressure, you’re just not heavy enough for the entire case to be seized over its full travel.
    So I suspect it’s sizing but I would keep putting more powder I. Til I compare the fired vs sized dimensions and maybe compared that to the reamer print to see where the large dimension is happening.
     
    Sure sounds like it

    If it’s clicking on reloads that aren’t too hot it’s a lack of base sizing/small base chamber.
    If it’s normal fitting brass then it could be the start of pressure, you’re just not heavy enough for the entire case to be seized over its full travel.
    So I suspect it’s sizing but I would keep putting more powder I. Til I compare the fired vs sized dimensions and maybe compared that to the reamer print to see where the large dimension is happening.

    Damn it, another thing I yet need to buy lol. A small base sizing die.

    On the other hand, I'm not sure if it's sizing and here is why I think that. This brass was once fired from a huge batch of once fired brass that I've been using. I've done many other reloads on this same lot/same batch of once fired brass and this is the first I've ever noticed this phenomenon.

    The new factory seconds White River Energetics primers were in my opinion hot. When I fire the same charge weight with my typical wolf LRM primers, I get waaaay slower velocities. Another thing to note, when my barrel was new, I took it up in .3 increments to about 42.5 grains of h4350 and by the time I got to roughly 2830ish FPS, I had heavy bolt lift. So I'm guessing these 2nds pushing me into 2860ish territory are putting me into high pressure.

    All this to say, I could very well still be wrong. As I've said before, I still consider myself a newbie at this game. I'm almost scared to run it up higher and add more powder to see if I get more pressure signs haha.

    I'll get dimensions when I'm back home as I've already left for work. As always, I appreciate your input.