I have a striker fired 9mm that needs the primers to be "preloaded" a bit for consistent ignition, and a Ram Prime is best for this. (I've been seating primers for at least 25 years and very rarely have a problem). I don't use any "below flush" measurements, just make sure each primer is all the way to the bottom of the pocket, and the Ram Prime gives me this "feel" better than most other methods...As Bart said, conventional wisdom (at least everything I have read) says that for consistency, the primer compound needs to be slightly compressed the same amount for each round. The idea is that the only way to achieve this is by the "feel" of a hand tool & experience. A press' high leverage won't allow this finesse.
A ram prime die in a press will do this better than anything.
RCBS and Lyman make good ones. (Lee's, from what I recall, was somewhat suckier.)
What is the advantages using a hand primer vs doing it on the press?
I wonder. What makes the Ram Prime slower than a hand primer? I have never used one, but just looking at it, it seems (once installed) that it would be exactly the same number of hand movements (though the operating lever does travel several times further with the ram prime than the two inches or so the hand primer requires). Other than that, it does not seem things would be slower.
I use the Lee Classic Turret press with the Safety Prime. I like the idea of only one primer being in the area of actual compression.
What is the advantages using a hand primer vs doing it on the press?
Press rammers are akward to use and slow and lack the 'feel' to set primers properly, IMHO.
I think ram priming has better "feel" and consistency than a hand prime.
MO They are junk, plain and simple junk. The tops covers are so easy to break its nuts. Instead of the primer just sliding into the slot where the ram is, it has a lift that brings the next primer up when the previous one is inserted. It catches on the lid and gets turned sideways. Then ones in the tray turn over. The tray has this unique method of aligning a 1 inch row of primers that works about 20% of the time then they hang up.
The shell trays have lines in them so that when primers are upside down you gently vibrate and the lines catch the primers and turn them over. The new Lee’s are so shallow they don’t work.
Just stay away from the new Lee primers tools.
Thanks for the reply, Lee N. Field.lee n. field
I have used both. I started with a Lyman ram prime die, because that's what the store had when I started accumulating handloading tools.I wonder. What makes the Ram Prime slower than a hand primer? I have never used one, but just looking at it, it seems (once installed) that it would be exactly the same number of hand movements (though the operating lever does travel several times further with the ram prime than the two inches or so the hand primer requires). Other than that, it does not seem things would be slower.
What makes the ram prime die slower is having to handle each and every primer. With a hand priming tool, you fill the tray, and don't handle primers after that.
Yes, with handling individual primers, a Ram Prime would be significantly slower. The pictures of press-mounted Ram Primes I have seen show a tray of primers that seem to feed into the Ram Prime without handling. Hence my confusion.