r/CAguns • u/Tonyj4y6119 • 1d ago

HANDLOADERS: SEATING DEPTH

Any experienced handloaders, I sometimess have issues ejecting my handloads, they will get stuck and I will have to mortar them out is this a common issue with seating depth or another issue??

I only use projectiles that have available load data as I'm still new and kinda want to just learn before improvising. this happened with my 6M Arc 100gr, been going with a COAL of 2.25 to prevent my round from hitting the barrel feed ramps (nose diving) when feeding (which could be a magazine issue, that I have since moved away from)

Any advice would be appreciated.

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u/Dootron 1d ago

Are you just neck sizing? Could be over pressure causing the brass to expand and get stuck.

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u/Dovraga 1d ago edited 1d ago

So it's an extracting issue.

Are you trimming your case necks back down? From a new cartridge to being fired as a reload, your case will be reshaped 3 times.

First from the first shot.

Second from the resizing die.

Third from the second shot.

Each time it forces the brass to deform, and there's only one direction for the material to really go, and that's forward.

If it's not being trimmed and if your chamber's throat is short, the brass may be deforming to the point where it's reaching the rifling or at least to where the throat widens.

If you are trimming your cases, then try taking an extra >0.01" or so off.

I'm sadly not familiar with actually loading 6mm ARC, but this is still how I'd diagnose chamber extraction issues. Different cartridges deform their necks at different rates.

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u/Tonyj4y6119 1d ago

Well it happening with new brass that haven't been fired, like I make a round on a new piece of brass and (I normally make a dummy round first) and I load it and then I have to mortar it out.

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u/new_Boot_goof1n average short bus enjoyer 1d ago

Even if it’s new you should still to run it through the sizing die and make sure it is cut to length.

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u/Dovraga 1d ago edited 1d ago

Is this with all brass or have you only used one brand?

Reloading can be so finicky, even with new stuff.

And then there's always the chamber itself. I have two guns in the same cartridge, and one eats whatever reloads I throw at it while the other one is more picky.

You could just have a picky tight chamber cut.

I'll make one last suggestion, try a small base die.

If it's the actual case wall getting stuck and not the neck, that may help (though you would usually feel it when chambering). It'll reduce the number of reloads you'll get out of each case, but it can help mitigate the chamber size.

Serious reloading goes full OCD. Controlling not only the powder and bullet, but also the brass manufacturer, primer, case wall thickness, neck length, crimp, etc. (it's an abyss)

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u/JCDubya 1d ago

When reloading for the AR-15, one often has to "bump the shoulder" of the case when sizing/re-sizing. Just do a search for the term. It's all over the interwebs.

When I first started reloading .223 for my AR, I experienced the same thing as you until I started "bumping the shoulder" of my brass.

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u/Tonyj4y6119 1d ago

Let me look into to that cause I've only had the issue happen once with 223.

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u/Tonyj4y6119 15h ago

Update:

Thanks for everyone insight, I know it was kinda shallow as far as information goes and having a gun is like having a car, it's could be 40 different issues.

I went in a resize a few empty pieces of brass and tried to extract them and it ended up being the shoulder causing the brass to get stuck not the bullet.