Hi im new to the reloading gig and made my first rookie mistake. I bought a box of small pistol primers to reload 9mm and was so excited when I got home I primed up 250 cases. a few days later I went back to de-prime and resize some more brass and noticed I was handed small pistol magnum primers! I did not notice this until it was too late, My question is can there magnum primers be used in a 9mm load with a lower charge? I have tight group powder and 115 grain x-tream bullets jacketed. I have ONLY primed the cases at this point. thanks for any help!
9mm reload
- Thread starter fordrulz
- Start date
You will gain maybe 15 feet per second, and if you were to chrono
the loads you would probably notice that extreme spread and
standard deviation was smaller with the magnum primers.
I'm going to assume that your x-treme bullets are plated, not jacketed--
you should be using lead bullet level charge weights. Should be fine,
but drop your charge maybe .2 grains if you want to keep the velocity
the same as standard primer loads.
When primers were hard to get I ran 20,000+ 9mm loads with small
magnum primers--and didn't change anything. No problems.
the loads you would probably notice that extreme spread and
standard deviation was smaller with the magnum primers.
I'm going to assume that your x-treme bullets are plated, not jacketed--
you should be using lead bullet level charge weights. Should be fine,
but drop your charge maybe .2 grains if you want to keep the velocity
the same as standard primer loads.
When primers were hard to get I ran 20,000+ 9mm loads with small
magnum primers--and didn't change anything. No problems.
Average Joe
New member
Use them, you won't even notice the difference.
Yeah. I agree. You're fine.
It's an easy mistake to make. I think I may have done the same once. But the situation does speak to the craft of ammunition handloading and the importance of checking and re-checking. Read your labels closely - primers, powders, and even bullets.
I when I load, I even keep the powder being used prominently displayed on the load bench - label facing toward me. I read it several times while loading. I look at the scale setting (balance scale) bunches of times - even after I'm though charging. I even state the recipe out loud several times (e.g. "6.1 grains of Titegroup") as I'm preparing the load bench.
Which, by the way, is what I should really be doing right now: Loading 44 Special with 200gn plated FP's, and 6.1gns of TG under them.
