223 brass

[Wing Nut]

I bought some new winchester 223 brass when I usually use remington brass and was wondering if I should expect a different pressure and load accuracy from the winchester brass. I use 24.5gn of 2230 powder and 55gn vmax bullets . my worst group with that load is 9/16 of an inch with 5 shots at 100 yards. I wanted to know if any one had some opinions on what to expect.

 

[esheato]

Different components, different results. No matter how small the change (bullet, brass, primer, propellant) start at the minimum and go up from there.

Expectations? I have no idea. You didn't mention what gun you were shooting. Also, I can see that you're using good components and that's a big step in the right direction.

Accurate guns are typically accurate with lots of different loads. Sounds silly, but it's not.

Ed

 

[Wing Nut]

I am shooting a tika T3. I know the winchester brass is thicker and lasts longer thats why I wanted to switch. some I have talked to have said it will not matter but I wanted a second opinion and I will start with min load.

 

[Dave R]

In general, if the brass is thicker, then the case has less volume, and that will raise pressures.

So, as you said, start with the minimums and work up. If you have a chronograph, you might find higher velocities with less powder because of the lower case volume.

That's the theory, anyway.

 

[RustyFN]

What Dave said. Any time you change a component you should reduce the load and work back up. That's the fun part of reloading isn't it?
Rusty

 

[Wing Nut]

thanks, U are right.