Press Mounted Priming

[Creeker]

A short video of the RCBS Ram Priming Unit.

 

[fiver]

good video.
I have one of these also.
I like to think of it as the single stage version of the RCBS bench priming tool.
still a big step up from a hand priming tool [it will last forever] and it fits in with my other equipment better.

 

[Creeker]

Nice to know I'm not the only one using this.

 

[462]

I've been using the RCBS ram prime for many years, and adjust it so the primer is seated when the press lever is all the way down. Like casting bullets, once you get the rhythm down, the process goes along quite speedily.

 

[Pistolero]

I never used the one on my Rock Chucker for at least 40 years. Moved it to my vacation
cabin, started using it. Surprise! It works great. I use the one on my Redding Turret
press a bit, not a whole lot.

oops, I misunderstood the question. Have not used this particular kind.....but use the
priming system on the ram of my presses. Not the same thing.


Bill

 

[RicinYakima]

Plus one, used on my RCBS Summit press.

 

[Gary]

Got one but I don't use it, I prefer the old Lee hand primer.

 

[S Mac]

Looks like a nice tool, but what is the advantage over the priming arms the press is equipped with? I do prime on the press, prefer it to a hand tool.

 

[S Mac]

After giving it thought I guess the ability to adjust the die is where it's at. You mentioned in the video about the right feel when setting it up, I use the feel with every case.

 

[462]

To my way of thinking, being able to adjust the seating to a consistent depth is important. If I want a primer seated, say, .004" below flush, the RCBS unit can be adjusted to do so regardless the caliber, primer size and brand, and that is something hand primers and press mounted systems can't do that. In fact, my press mounted system won't seat small primers flush, unless the handle is given a healthy smack.

 

[mikld]

I got one 20+ years ago, but it is a Lee. I couldn't get comfortable with hand primers, I tried 3 different kinds, and I had to reset the tool in my hand after every squeeze. I purchased a couple other ram prime units and put them on my Lee turrets that had vacant holes. Work great...

FWIW, I disregard any "below flush measurements" and just make sure the anvil is securely seated to the bottom of the pocket. Variations in pocket depth, primer dimensions, and priming tools often result in poor primer seating. Haven't had a misfire due to an ill seated primer in 30 years...

 

[Rick]

It's not so much a misfire from non-uniform primer seating as it is when looking for utmost accuracy. On my match brass I uniform all primer pockets and seat primers to a uniform slight crush with the RCBS bench mount priming system. Inconsistency in primer strike will effect S.D., AV spreads and groups. In the run of the mill off the shelf hunting rifle, plinking ammo or short range handgun it's most likely a mute point.

 

[fiver]

probably not.
but if your gonna be doin sumthin you might as well take 2 more seconds to do it the best you can.

 

[Intheshop]

As always, "nice video creeker",haha. I was thinking about you today using a new,fancy 223 seater I made.... well,some would say talking to myself? "bet Creeker could make a video of this".... smiled,and put another round through.

Got,or had,that same press.... "red son" (Hornady guy) sort of stole it. They are nice for exactly the reasons you cited. Anyway,keep that camera rolling,love the vids! BWS

 

[waco]

Great video. I have not seen this item before.

If I want a primer seated, say, .004" below flush, the RCBS unit can be adjusted to do so regardless the caliber, primer size and brand, and that is something hand primers and press mounted systems can't do that.

Not true. The Frankford Arsenal hand primer does just that.
https://www.midwayusa.com/product/5...latinum-series-perfect-seat-hand-priming-tool

 

[462]

Thanks, Waco, for today's handloading learning lesson!

 

[Ian]

That unit was all I had for a lot of years, primed tens of thousands of cases with it using--get this--an RCBS Ammomaster single stage. The weight of the handle will seat a small pistol primer. Feel? There isn't any, just set for the depth you want and let her cam over. Agree with Rick and others, though, not the best way unless you uniform the pocket depth very carefully.

I just remembered that my kit had an issue with one of the rods, it seems it missed the threading operation so I had to swap the punch/cup/spring back and forth to change orimer size.

 

[Rick]

Agree with Rick and others, though, not the best way unless you uniform the pocket depth very carefully.

I do. Sinclair primer pocket uniforming tool run at 600 RPM removing chips as I go. Cut the pocket until the tool is bottomed out flat against the case head and the cutter will cut no more. That's on virgin brass, on fired brass same procedure because the pocket gets shallower on each firing so clean it up and uniform it every time.

 

[Ian]

Redding carbide uniforming tool and mini-lathe run at about 500 rpm is how I do it.

 

[mikld]

I guess I'm in the wrong forum. I reload because I like to and my "rudimentary" reloading methods don't fit with the general population here. I'm a "black and white", common sense, K.I.S.S. reloader and I keep things basic which works for my shooting style (my best 308 load gave me 7/8" at 100. My Garand will occasionally give me 3 1/2"-4" on a good eye day, and I have loads for my Dan Wesson 44 Mag. that keeps them all around 2" @ 50'). Thanks for the time the members took to help with (correct) my posts...

edited distance for 308 load; 100 yards, not 200...