Winchester WLP Primers


In this review, we’ll take a look at Winchester’s dual purpose large pistol primers (WLP). These primers are a bit more powerful than typical large pistol primers, but not as powerful as standard magnum primers. None the less, Winchester categorizes these primers as “for standard or magnum loads”. I have personally loaded thousands of 45 acp, 44 special, and 44 magnum loads with these primers. I’ve used both the old style (nickel plated) and the new style (bare brass). These primers have always worked really well for me with zero malfunctions.

Overall Score: 4.5/5



  • – Priced reasonably
  • – Dual purpose primer, no need to empty priming system between magnum/standard load changes within the same primer size
  • – Compact trays that allow primer pickup tubes to be used directly


  • – No dedicated large pistol magnum primer from Winchester

Complete Review:

Winchester makes great reloading components, and primers are no exception. Winchester primers are packaged in packs of 100, or bricks of 1000 (a box of 10 packs of 100).

Winchester WLP Primers, Tray, Box (100), and Brick (1000)


Completed rounds (45acp on left, 44 magnum on right), loose primers, packaging (old on left, new on right)


Old-style WLP primers (nickel plated)


Note that Winchester has changed the style of these primers. They used to be nickel plated (for corrosion resistance). Winchester switched to bare brass to minimize the required impact force from the hammer or firing pin for reliable ignition. This can be helpful if you have a lightened action and need primers that don’t require much force to light off. These primers are readily aviailable, and have worked really well for me.


These boxes are not filled with a lot of empty space, so they don’t eat up valuable shelf space. The plastic trays are substantial, and they allow the use of primer pickup tubes (such as the style used with Hornady and Dillon systems). I tend to use an old Lee primer tray, and flip the primers onto a flat surface instead of using the pickup tubes directly on the trays, just my preference.

 The nice plastic trays and compact packaging gets a score of 4.5/5.0.





I have shot thousands of both standard loads and magnum loads with WLP primers (both the old style and the new style). These primers have been flawless in terms of ignition, and even with full house 44 magnum loads with bulky powder (Hodgdon H-110) the granules are completely burnt. I have not had any issues with these primers feeding or seating properly. I give these primers a 5.0/5.0 for well rounded performance.



Value for the money:

With a street price of $25-30/1000, these primers are priced at or below the average price for primers at the time of this writing. That makes these primers a solid 4.0/5.0 on the value scale.




Summing it all up:

Winchester WLP primers are a good product that can streamline your reloading process by working both with regular loads (such as 45acp) and magnum loads (such as 44 magnum). These primers come in nice packaging, and work well with factory pistols, as well as pistols with actions that have been worked over (within reason).

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4 thoughts on “Winchester WLP Primers”

  1. I would like to ask for your opinion in regards to the use of Magnum primers.
    I can’t get ahold of any standard LP primers. I have a brick of Magnum primers left, and I need to load up some 45 ACP. I know the Mag Primer will burn hotter, so should I even bother trying to use them, or would I be ok dropping my charge about 5% or so?
    I am just getting back into loading after a 5 year hiatus, and I assume a reduced powder charge would be in order, but I also want to keep my safety and those around me my top priority so some sound advice would be appreciated. Im not comfortable with an assumption

    Brian Cobb

  2. Your mileage with WLP is very different from mine. They’ve worked fine in a G21 or 1911. But in a S&W 625 revolver (stock, no action work done), I had about a 33% fail rate with them. With a revolver, my experience (with several hundred of each primer type) has been that Win WLP was the hardest to ignite, CCI large pistol was 100% reliable in the revolver prior to action work and not as much after, and Federal was 100% reliable even after having a trigger-job/action work done.

    Oddly enough, Winchester was nearly comparable to Federal with small primers though.

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