300 Blk Sizing Die Shootout - Part 3

okay folks it's time to continue our look at 300 blackout resizing dyes this is going to be video number three so if anything doesn't make sense make sure you step back and check out parts one and two this is hopefully going to be a more focused video maybe because there's only one thing I want to accomplish in this video and that is to fix the mixed neck tension problems with our lead I with hourly resizing time in the previous videos we found that this guy just does not provide enough neck tension or it doesn't provide nearly as much neck tension as our Forester and our CBS dies and what it comes down to the expander in the Lee is a three oh seven right this is what sets the final diameter of our neck now the RCBS is a 306 so it's a thousandth smaller than this and the Forester is a little bit smaller still we generally hit readings of like 305 5 so that's the whole point of this video right here is I want to take this 307 expander and I want to reduce it down to 306 or 305 this is a common thing that you know people will sometimes do but unfortunately I've never done it before so we're gonna be learning together here I might screw it up but you know what no big deal man I can order a new one of these for three or four dollars so I've got some various levels of scratchiness here the most scratchy thing I've got here is a 120 grit I think that's gonna be a little bit too Scratchy take off a little bit too much material too fast maybe so this will be our last resort or it'll be you know if we try the other options and we're not getting anywhere we'll pull this guy out I've got a couple of these sanding blocks this one right here is labeled as a 220 grit fine this one is a little bit rougher but I can't read the labels on it I can see that it also says fine but I can't see the exact grit I think this is going to be our second most abrasive option and then I've got like a scotch-brite pad for maybe some final polishing I also have some me I don't know where it went but I've got some steel wool as well if we decide that we need that so what I want to do is Chuck this guy in a drill and get to town so let's do it all right so this is gonna be fun to film I'm sure we should just be able to do that all baby that's spinning nice and true all right so let's start out with this this block here well if I turn it sideways yeah why not so I want to try to do this high-speed because it seems like the higher our speed the more even it should be I would imagine I don't know but let's just let's just go to town here for a second [Music] that doesn't seem to be doing much it's not very hot so it seems to still be reading primarily 307 I did get a 306 5 every once in a while but yeah it doesn't really seem to be doing much of anything so far yep let's go ahead and let's go ahead and use the 120 yeah let's go ahead and switch to the 120 grit all right now tore off a smaller sheet did this is actually for a belt sander I like the you know cloth and flexible backing that these give so that's usually what I end up doing is buying frickin belt sander things and then it's tearing them into slices alright this might be a mistake let's get to though [Music] [Music] [Music] okay that was definitely rougher now I must hit it with this guy a little bit just to smooth things up a touch yeah that looks good feel smooth let's get a measurement of it haha progress a little bit 306 5 seems to be a very consistent measurement now yep let's keep going now I know it's boring to watch me saying this but I don't want to cut out any of the parts where I'm actually sanding I want you to get a feel for exactly how long it took me to do this you know what I'm saying so I know cut into the next measurement might make for a more pleasant video to watch but hopefully this will be more instructional about how long it actually takes to take off some material [Music] [Music] [Music] [Music] [Music] so it's looking like we've made it down to 306 now that might be where a sensible person would stop yeah it looks like 306 I want to go just a touch for farther I want to kind of match that Forester at 305 five let's go back to the to the to the 120 grit for another just a little bit and then I'll run through maybe some of this stuff - really good to not get a nice high polish on it before we call it good [Music] [Music] [Music] [Music] all right dead battery there we go almost done as you might be able to tell my battery's been just about dead this whole time so it is now going SuperDuper fast I had it on high speed earlier but it wasn't quite crazy high speed [Music] [Music] [Music] yep I think we've now got a 305 5 expander ball awesome you know another thing we want to do while we're while we're all set up here is the other expander balls you know our our Forester on this side or our CBS on this side I think I want to go ahead and just polish them a little bit with this guy just to make sure they're nice and shiny and slick [Music] yeah that's got a nice shine to it now yeah it still reads Sun it still reads 306 like you did before so yeah and last up is our Forester [Music] okay so I've reinstalled our decapping pin in our die I've put it in my press and I want to go ahead and resize a piece of brass with it real quick and then we'll see the bullet and measure that neck tension up it goes back down there we are so I've got one of our 168 grade-a maxes that we were using in previous videos so what I want to do is measure so the outside of the neck is coming in at 327 and previously we were seeing that after we've seeded a bullet it didn't grow like it would be the exact same measurement after that it was before so let's go ahead and seat this guy and see if it grows a touch I don't even know where this bull's seating die is set but close enough so I'm getting about 3:30 now yep seeing some 3:30 ones so good so it was a little bit tight getting that boat started so it's definitely it's definitely a tight neck you know maybe we went a little bit too far I don't know but with the you know the bullet set back and cartridge growth that we've been seeing when we're slamming the bolt I want them nice and tight so it looks like yeah looks like our lead eye is in good shape now maybe alright guys it looked like you know we either eyed sandpaper this 120 grit really seemed to work halfway decent but you definitely want something something smoother to polish this was a good combo the 120 and then this sanding block I don't know it's a fine it's a fine sanding block and then some scotch brite or some steel wool or something to finish up the polish was a pretty good stuff for the job so ended up being pretty easy this is where I want to leave this video so that if you know people don't have lead eyes and they skip over this one they won't miss much so I'm immediately going to start filming the next video in this series where we're going to look at more at the neck tension issues we've been having and the bullet movement you know cartridge the cartridge is stretching or getting set back as we chamber them in the action we're gonna explore that some more but this one ends right here so you want to help support the channel come check me out at patreon.com slash reloading and I will see you guys next time

Channel: Johnny's Reloading Bench

Views: 16,198

Rating: 4.9729729 out of 5

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Id: _J9tlry4oTA

Length: 11min 56sec (716 seconds)

Published: Mon Sep 25 2017