Do most primers perform the same?

[firemanjoe]

I know there are differences between standard primers and magnum primers, but is there really a difference between manufacturers when it comes to normal primers?
I ask because I have always used cci primers for my 223 loads. Recently I found a good deal on some Winchester srp so picked up 1k. Do I really need to work up new loads when the only thing different is the primer? (Just loading plinking ammo)

[bsumoba]

there are some differences. you might get better velocities from certain manufactures and sometimes the hardness of the primer itself could play a factor. For example, No.41 CCI is intended for semi-autos to help mitigate potential slam fires, thus the primer takes a bit more of a strike to get it to ignite.

I heard of varying velocities anywhere from 0-60 ft/sec from mfg to mfg. You might even notice it from lot to lot within the same mfg. It just depends.

now, the difference between regular and bench primers is the consistency of how the primer ignites and it just overall, has better QC and tighter tolerances so to speak.

[CK_32]

Honestly I don't even notice I've switched from a couple. I feel my shooter errors and rifle flex and stuff like that play more a factor than switching primers. Tho some talk about it like you moved to a completely different bullet weight and type.

IMO if you found a good deal go for it. I doubt you'll notice anything but a fatter wallet after the purchase unless your shooting 1k top end comps.


Edit: Unless your near max or just below your pressure signs I don't think you will need to work back up and be fine switching primers. But if your around max I'd def drop down and work up a little.

But dropping down wouldn't be a bad idea just to be safe since this is the interweb after all. Rather you be safe than sorry and know I might have had something to do with it. But your a grown man I figured I'd give you a realistic answer and let you decide on what's safer or a good idea.

[Spanky8601]

http://www.jamescalhoon.com/primers_and_pressure.php