Great video thank you. I will be using this video for setup. Thanks! I had 2 separate issues that were preventing passing a gage checker: First, for a Dillon XL750 (any Dillon with a 550B quick change turret), lee resize die is not compatible (screw it in enough for correct seat depth, the collar nut free spins and cannot grab a thread to tighten down). Therefore the neck was too shallow and the back of the case sticks out too far. RCBS die did the trick and was way higher quality. Now the brass fits the gage checker. In all fairness, the old ammo worked 100% in a brn180 and basic AR upper, but wouldn't even chamber a MCX, which seems to be VERY picky in tolerance. (To be clear for the ammo used that didn't pass a gage checker, it was all subsonic 12.1gr CFE BLK, not really much of a pressure concern compared to supersonic or .223 pressures) Second, the neck was obviously too thick on some brass. I think it is even more exagerated when trying to use cast 30 cal ammo vice berry's. The cast might even need .010" neck thickness to make it work, i'd have to dimension it.

I grabbed the RCBS hand neck turner mainly to convert 8mm, but I ran a batch 300 and the results were great, I agree 100% once fired everything settles in and the benefit is increased

I neck turn all my 300 brass at .011 also . It does make a difference in accuracy and function .

Alright based on this video I pulled the trigger and bought one... Indeed no other shell holders work unless you drill them out with a drill press or lathe (or Dremel). First issue: my resized brass was too tight on the neck dowel, causing it to screw all the way down (making the resizer not usable) and getting the case stuck. I have corrected this issue by using a "wedge" or "shim" inside the tube threads to keep the dowel sticking out so the trimmer is flush with the neck. You can makeshift any wedge but I went with the diy crank pulley key stock from Napa and cut it down with a Dremel. Other than that, this did exactly as I asked it to. It almost makes me want to use wolf gold and ppu brass because it is thicker in the other areas...

Nice to see you again 👍it's a great tool

If you don’t resize and trim first, you can neck trim back into the shoulder on a short neck ruining the case OR not trim far enough back on a long neck case and end up with a chamber jamb due to the neck wall being too think. Converting cases is wall thickness issue as different head stamps vary in wall thickness, which ends up to be the converted neck of the 300 Blk Out Case. After trim the neck wall thickness has worked well at .0135. Have used Sheridan Slotted Gage for 300 Blk Out to check rounds after assembly and found fit works. If you have a match grade barrel with less tolerance, the chamber may very well be a tighter fit. If neck wall is too thick the cartridge most likely will jamb at a critical moment. Good luck getting the stuck cartridge out of the chamber. The old Viet Nam stuck cartridge trick may or may not work. Make sure safety is set to on, KEEP CLEAR OF MUZZLE, rap the rifle butt to the ground firmly and hope it dislodges the cartridge without ripping off the back of the case. Otherwise you can take the risky dowl approach and drive down the barrel to push the cartridge out backward. This is dangerous, so if you’re not in a firefight find a gunsmith… THE SAFEST METHOD IS DON’T TAKE SHORTCUTS, AND CONVERT THE CASES THE RIGHT WAY EVEN IF YOU SPEND MORE TIME. PS…You will have better cartridges if you resize after neck trim as suggested, due to trim turning the case can spread the neck to not be round anymore. Resize one last time will size neck back to proper opening to hold bullet tight and the decap/resize rod will spread the neck opening, then the neck will spring back to desired diameter and round to hold bullet. You can use a neck resize die only and a mandrel die for .308 to accomplish the same function, but some say that process is more uniform. This process has worked well and produced worry free range time.

I was told before you tighten down the case with that ring you need to have the case in contact with the mandrel to make sure when its tightened down the case is aligned with its center axis if that makes sense. I am not sure if I am explaining it well. Edit: Also, I took the spring out of the shaft on the right, seemed unnecessary.

My single issue is proprietary shell holders. But the unit works VERY WELL.

Hey TreeTop ! Good to see another video ! Lots of great information here as always !

Just bought one, first disappointment out of the box is proprietary to Hornady shell holders only, which it don't come with, well I have a couple dozen RCBS and Lee that do not fit! Second was the guide mandrels fit, fired case their way too small to be accurate, sized case their too big and the case won't slide over it. So my first modification will be with the shell holders, I may drill out my existing shell holders to fit or, I can mill the center holder smaller to fit 95% of all holders out there. As for the mandrels fitment, Either neck size with a specific neck die or maybe cheaper option use a Lee collet neck sizer for better mandrel fit. The quality seems realy good. I guess no one said reloading was cheap or quick.

I just bought the rcbs because it was the cheapest. Probably not the best reason. I got it for converting.308 to 8.6 blk. Haven’t had a chance to use it yet. Looks like the hornady is well made and I’d imagine more repeatable. The rcbs is hand held

I enjoy the thouroghness of your videos. I would like to ask if you have time, to make a video on reloading 300 BLK. I know there are other videos on YT but you seem to be more concise. I am new to the reloading game. I have the Lee Classic Turret press and I have read the Lee reloading book but, still would like to see a clear step-by-step process. Thank you in advance if you decide to do it.

What is the thread on the mandrel? I need to machine a custom one.

I ordered this and a reamer should not have a issue loading 265 grain bullets for the 300 black out

Another thing to be aware of is RUST!!! Just about everything that Hornady makes, will rust if you turn your head away from it. Must be generously coated in Lee Alox! Another great video.