6x45 Reloading issues...HELP!

[Outback]

When my 6x45 feeds correctly, it is accurate and should make a great deer/hog gun. The trouble is that every box I've reloaded has a few rounds that will not fully seat. I'm looking for a case gage (Wilson, etc.) but no luck. I set the RCBS small base AR15 dies up according to the instructions so I'm not sure what to do. While I look for a case gage, what should I try and how do I test it without reloading? Can I just put a resized case in the magazine and slowly chamber it? IF it sticks, what should I change?

Thanks. I've been reloading successfully for many years but only recently for ARs. My .223 AR reloads fine.

Jayson

[Outback]

anyone?

[hoythitman]

Are you crimping? If you use a roll crimp on a tight chamber AR it will do that. Back your bullet seater die off a little bit on the big threads, then adjust the seter part down to compensate and see if that corrects it. I had an issue on both my 300 BO and 6.5 G doing it.

[Mike D]

How are you forming the cases? You may have to neck turn.

I'm following because I've considered a 6x45 AR build at some point.

[Outback]

I'm just lubing, depriming/resizing through the full length RCBS AR15 6x45 dies, tumbling, priming, charging with powder and seating the bullet, a little longer than mil spec but I bought metal magazines so they fit. That's it. I probably should trim the brass, but I've ever needed to before.

I'm not trying to roll crimp, but I will do as suggested and reset the dies up per procedure again. I wish I could find a Wilson-style checker in 6x45 but they don't seem to exist.

[LWD]

I'm not clear on the sizing process you're using. You mention an RCBS small base AR15 die. Are you using a small base 6x45 die? Or is it a .223 die and then you're expanding the neck? Or something else?

LWD

DISREGARD THIS. JUST SAW YOUR POST.

[LWD]

I would de-prime and clean the cases first. Then resize them. Sizing and then tumbling introduces an opportunity for the cases to get deformed.

You also need to check the overall length of the brass. Small base dies squeeze the brass just a little bit more. It has to go somewhere.

I would not exceed the COAL standard for a loaded cartridge. Differences in individual bullets could cause a problem with some rounds.

Remember, this is a business where thousandths matter.

If you are roll crimping stop. If you want to crimp these, and I'm not sure you need to, taper crimp them.

LWD

[hoythitman]

Brass length might be too long. Check brass for trim length, you didn't mention trimming after re-sizing. That could be the culprit as well.

[Outback]

I ordered a Wilson case checker yesterday. They don't show them on the website but they have them in stock. For anyone who starts reloading for 6x45, you are welcome to rent it when I'm not using it for the cost of shipping it back and forth. I'm hopeful that I can use it to setup my dies and determine the cause of the sizing issues. I really do need it to go boom when I pull the trigger, every time!

[TxNurse]

I ordered a Wilson case checker yesterday. They don't show them on the website but they have them in stock. For anyone who starts reloading for 6x45, you are welcome to rent it when I'm not using it for the cost of shipping it back and forth. I'm hopeful that I can use it to setup my dies and determine the cause of the sizing issues. I really do need it to go boom when I pull the trigger, every time!

A mid priced dial caliper will tell you a lot more than a case checker. Hopefully you already have one for checking OAL, etc.

[LWD]

Did you use a dial caliper to check the length of the brass? That's absolutely the first step here.

LWD