New to reloading

[FROGO207]

What they are saying is the charge fills the case enough that if you double charge it (add 2 charges to the same case, which could blow up things) the second will fill it to the top or run over the side of the case and you will easily see that. You can compress a charge only IF the manual says that a particular load will do that safely.

Just start the propellant charge 10% below max charge for those propellants mentioned above and work up to max charge IF needed. I load upwards until I find an accurate load and duplicate that. The Winchester primers are OK to use but if you change brands of primer or lots of propellant drop your charge back a bit and rework it for safety.

Welcome to THR.

 

[kcofohio]

Sni-per, welcome to THR!

Silhouette is my favorite, so the following is a biased opinion.

I find Silhouette to meter well and shoots fairly clean. And if you run across some older load data, WAP (Winchester Powder/no longer marketed as such) is the same powder as Silhouette.

Be safe and wish you well in your new hobby/soon to be addiction!

 

[rcmodel]

No, compressing the powder is not a bad thing.

IF your reloading manual says that weight of powder is a safe charge.

And Unique is not safely loaded in many handgun calibers until the case is overflowing!!!!

That is simply a generalization saying it takes more of it then Bullseye or Tightgroup to reach max pressure.

You simply have to use published data to find out how much of each type of powder is safe.

Winchester WSP primers will work well with any powder used in 9mm.

rc

 

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You found a good powder to start with and you are lucky to find it. Overflowing the case is a little exaggerated with a normal charge of unique. A double charge will overflow in most cases. The fact that you cant double charge a case is the add safety of fluffy powder like unique. Its super easy to spot a charging mistake. The key is not to make a mistake. If you have too stop for any reason, take all the cases off the shell plate and turn them upside down to make sure that there is not any powder in them before starting up again.
One other subject you may run into is neck tension. You want to make sure that the bullet cannot be pushed further into the case. I test this by pushing a loaded round aginst my bench. If the bullet pushes in then there is an issue. Some have acceptable limits of "setback" but I will not tolerate any. This is my main reason that I seperate my brass by headstamp. Some brass is thinner therefore the internal diameter of the brass varies. i sort my brass by RP, win, fc, cci/speer, and military headstamp. I have three different sizer dies that sizes the brass to different dimensions. I use a mix of jacketed, plated, and cast lead bullets and tinker to find the right combination between bullet, sizer, and brass.
For what its worth it's the tension between the bullet and case that holds the bullet in place in 9mm. Whats referred to as a taper crimp is simply taking out the bell of the case mouth from when you expanded the case mouth. too much crimp may buckle the case an decrease the tension.
You have a machine that can load in bulk so when you get things figure out, buy in bulk. Check out RMR bullets. They offer a THR discount.