primer protrusion

[rangerwillie]

 I recently bought a 100 R-P 45 long colt new brass. I was loading some today (jacked and cast ) primed with win primers, some of the primers were pushed out a small amount when the the bullet was seated. They would not go back in the primer shell holder so I know they were seated all the way to the bottom of the cup. any suggestions?  dan

[Luckyducker]

What powder and what charge weight?  That sounds like a very compressed load, which I can't imagine in this cartridge with any powder that I am aware of.   I think you have more wrong than protruding primers.   Until you give more info I don't know how to tell you to procede.

[rangerwillie]

I used published book loads; 255 JHP - 15 gr HS-7,  350 WFN (cast) 16.5 gr 2400. The cases are less than half full, and the bullet is not touching the powder.

[Autorim]

It does not seem probable to push a primer out with powder pressure through the flash hole. It sounds like they were never seated fully or they are primed with large rifle primers.

[mbopp]

I find I have to seat primers a little harder in my .44 (WW brass & primers.) If I get a high primer I can remove it from the shell holder OK but it'll drag on the cylinder. I run my finger over the primers after they're seated to feel for any high ones.

[necchi]

I run my finger over the primers after they're seated to feel for any high ones.

A tip;  My bench is flat. I used 3/4 sanded plywood for the top surface sealed w/spar and keep it clean,,If I spill powder I can brush it off and put it back un-contaminated.
 Anyway's,,It might seem like an extra step,,but right after I prime a case, I put it on the bench's flat surface before it goes in the tray,,you can tell right away if the primer is seated flush.

[rangerwillie]

I do check that every primer is fully seated, and after I seat the bullet I stand it up on the table top. Some of them do rock and will not fit back in the primer shell holder. And yes, I am using LRP's. I'm loading for a NEF colt 45 LC. dan

[Graybeard]

DO NOT use LR in the .45 Colt case. Use large pistol not large rifle primers. There is a difference and just cuz you shoot it in a rifle doesn't mean you use rifle primers.

[Autorim]

Large rifle primers are taller than large pistol and should not be used in cases intended for pistol primers. Small rifle and small pistol are the same size. Rifle primer cups are usually thicker and necessitate a heavier firing pin strike to fire.