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reworking Lapua 220 Russian brass

timeout

Silver $$ Contributor
Just discovered this forum and it looks like where I need to be for my new project. I have done a very moderate amount of reloading over the years. I am now retired and have jumped into a project that I need some help on. I purchased a used custom built 6mm PPC rifle that included a sizing die. I also purchased some supposedly, once fired Lapua 220 Russian brass. While it may be once fired, it was fired in different rifles. Following are some examples of OD, ID, and neck wall thickness - in that order: #1- .2585-.234-.011 #2- .269-.243-.015 #3- .2615-.239-.0115 The rifle I have accepts a .2615" O.D. neck into the chamber with a very negligable amount of pressure to close the bolt. A .269 " neck O.D. will not go in. I can throw all this brass away and buy pre turned ready to go brass, however I would like to learn how to prepare my own from new (or used) Lapua 220 Russian. I have read that this process includes form firing, neck turning and resizing. If anyone has experience with this process, please help me to understand the correct order of going about this, as well as equipment I will need to purchase for the individual operations. Also any recommendations on amount of "press fit" between the bullet and cartridge case neck. As you can tell, I am brand new at this. I do have some backround in machining, so it is not all "Greek" to me. Any help you can give me is greatly appreciated. Thanks!
 
Here is a good start for you.

http://www.6mmbr.com/6ppc.html

And Welcome..........................Ron
 
Thanks for the welcome Ron. I read that article, but am not certain on the order of operations. Since I do not yet have any new Lapua 220 Russian brass, I don't want to just make assumtions and dive in. I am thinking the rifle I have is chambered for a .262 neck OD. Some of the obvious questions I have include: 1. Can I force a .269 into the chamber and fire form it with the pistol powder topped off by wax? 2. Do I run all the used brass through the sizing die that came with the rifle before fire forming? 3. If my rifle is indeed chambered for .262" neck OD, what ID do I want to ideally end up with? I know these are probably kindergarten like questions to most everyone on this site, but I hate to waste hours experimenting and then ruining the brass anyhow. I like to do as much work as I can myself. With proper instruction and the right equipment, I can make this work. This would probably require a very lengthy forum reply so, does anyone know a phone # of someone that would be willing to get me steered in the correct direction? Thanks again!
 
I sent you a pm with my phone number and then got to thinking that being new to the forum you may not be familar with the pm system or how to check it. My number is 864-323-2366 give me a call and I'll help you if I can. Brian Brown.
 
timeout said:
I would like to learn how to prepare my own from new (or used) Lapua 220 Russian. I have read that this process includes form firing, neck turning and resizing. If anyone has experience with this process, please help me to understand the correct order of going about this, as well as equipment I will need to purchase for the individual operations. Also any recommendations on amount of "press fit" between the bullet and cartridge case neck. As you can tell, I am brand new at this. I do have some backround in machining, so it is not all "Greek" to me. Any help you can give me is greatly appreciated.

The nice folks at Sinclair International [ http://www.sinclairintl.com/ ] have a handy list of everything you need to convert 220 Russian Brass into a 6PPC along with step by step instructions. Give them a call. Although I prefer the K&M Tools for turning [ http://www.kmshooting.com/index.php ], Sinclair has fine equipment too. I should know, I've got a bunch of it.

Another excellent source is the latest book by Tony Boyer, The Book of Rifle Accuracy that covers EVERYTHING on the 6PPC [ http://www.accurateshooter.com/book-dvd-reviews/tony-boyers-book-of-rifle-accuracy/ ].

Jack Neary provides a lot of good info on brass preparation, tuning, and shooting the 6PPC. It's Excellent and found here: http://www.youtube.com/view_play_list?p=7D85822FD9E41FF2

As far as "press fit" is concerned, the first thing you want to do is determine the neck chamber size of your current barrel. If the gunsmith did his job correctly, it will be engraved on the barrel up near the action and should read something like .262 Neck or .262 NK [which is a common size]. Today's latest trend, as you'll see in Jack Neary's video is to go .002" under the neck chamber size. In the past .0005" to .0015" was seen, but today it's .002" and in some cases as much as .0025 to .003".

Here are two other great sources [with pictures] on Case Preparation and Neck Turning Basics that will give you a good sense of what's involved: http://www.6mmbr.com/jgcaseprep.html and http://riflemansjournal.blogspot.com/2009/12/reloading-neck-turning.html

My recommendation: Start with new LAPUA 220 Russian brass. That way you know where you're starting from, and you've got control over the entire transformation.

Hope this helps.
 
Thanks for all the great help and advice. A special shout out to Brian for allowing me to call him. I really appreciate that. I am pointed in the right direction to get started now and will read/watch the info provided. Nice to find a place that will help this old man when I am stuck with the wheels spinning. :)
 
Buy a Hornady one piece 6PPC FL die. That way you will be sizing your used brass all the way to the shoulder, instead of leaving an unsized segment nearest the shoulder, as all bushing dies, except Neal Jones' do. The ID of the neck of the die is about .2575. You have neck thickness and 1" mic.s right? If not, get them. If you don't have a piece of fired brass that you know came from your rifle, you will need to make one. Check your loaded round neck diamenter, over the base of the bullet, if it is a flat base. Once you have this dimension, you can use something like the Hornady headspace gauge (dial caliper attachment to determine what the shoulder to head dimension of fired brass is. A good stout load, and a case that has only been neck sized for a couple of firings should get you near the maximum value. Always use a punch to remove the fired primer before taking the measurement. Now you have a way to set up your Hornady one piece die, without bumping the shoulders too far in the process. For this one time, you will need to put a little bump on all of your cases, so you may have to allow a shorter measurement than the usual .001 or less standard bump, perhaps as much as .025. Start long and remeasure. Start with your least fired cases, they will will bump with the die in its highest relative positon. After you run them all through at this setting, measure their bump, or lack of, and sort into groups that will require a very slight die adjustment,due to their greater spring back, due to more work hardening. You should leave them in these groups for all further use. Having done all of this (sans expander ball) you will have FL sized cases that have their necks sized to their shoulders and various neck IDs. Next you will clean the inside of the necks. and expand them for turning. Don't take all of the powder fouling out. Leave a thin and uniform appearing haze, this will help the liquid lube prevent brass transfer to the turning mandrel. Use a carbide mandrel. You will thank me. I have used several different expanding/turning lubes. Many work, and many are a pain to remove. RCBS Case Lube II works and is water soluble. When turning I like to drive the case holder with a cordless drill set on low speed range, and not get trigger happy. I put a little lube on the mandrel before doing the first case, dab some on from time to time while processing the whole lot, this in addition to the lube that I applied to the inside of the necks before expanding them (Q-tip) I like to hold the drill and the turning tool so that they can self align. Let them wobble. In an effort to keep the neck tightly pinned to the mandrel during the entire time that it is over the neck, to reduce thickness runout, I rush the cut when moving to the shoulder, take the thinnest possible cut on the shoulder with the leading bevel on the cutter, and come back out slow enough to make a well finished cut. I do not go back. One more thing, if you decide to bump the shoulder of an unfireformed case, go slow, and use the rifle as your gauge, leaving some feel on bolt close. Ordinarily, I am against setting dies by feel, this being one of the few exceptions. That should get you started.
 
Thanks Boyd. Looks like I have got myself into a project. I do have a 1" mic. For case wall thickness I am using a digital caliper. I assume that is sufficient? I am thinking that I better obtain the Book of Rifle accuracy in oerder to have some illustrations where needed. I am currently into winding up the field trial season. When that is over, I need to do a little hunting. So it will probably be about January when I dive full bore into this. In the meantime I'll do my homework and gather some needed tools/supplies to tackle this beast. Sure hope my rifle shoots after all the learning and work. :)
 
Caliper....absolutely not...You can measure a bullet to .0001 and then seat it in a case then measure the neck and bullet OD. A little subtraction and division will give you the neck clearance. No, calipers are not good enough. Good luck with your project.
 

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