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Posted: 11/23/2015 10:49:37 PM EDT
[#1]
It possibly can. I got a K&M expander iron to insure the correct neck size and remove any burrs. https://www.kmshooting.com/catalog/case-neck-expanding-tools/expand-iron_complete.html . Before using this, I could tell the difference with neck tension while setting the bullet. With this, most are uniform now.
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Posted: 11/24/2015 12:23:01 AM EDT
[#2]
Get a VLD type tool. I have the Lyman and it's been great for more years than I can remember.
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Posted: 11/24/2015 1:19:36 AM EDT
[#3]
Quote HistoryQuoted: Get a VLD type tool. I have the Lyman and it's been great for more years than I can remember. http://accurateshooter.net/Blog/lymanchamfererx350.jpg This. I have a newer lyman (head looks the same as yours) that I use in my RCBS prep station. I'm never going back to a 45 degree chamfer. Are you making sure that your mouths are completely chamfered? I can't imagine how they couldn't be, but it's worth a look. Don't be afraid to give the tool a few turns and get a good bevel on the inside of the case. You need more than just knocking the sharp edge off. |
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Posted: 11/24/2015 1:54:25 AM EDT
[#4]
Quoted: I have a quick question, although I have been chamfering the mouth of my casings before I load my 178gr Amax into them, sometimes the case shaves a bit of the jacket on the bullet when I seat them. My question is, will the small amount of jacket shaved off cause accuracy issues? Check the diameter of your sizing ball, it should be .305 to .306 for proper neck tension for a .308 bullet. If it's smaller than that, it's giving you too much neck tension on the case neck and shaving the bullet. If so, you need a larger sizing ball, contact die maker. Also double check the diameter of your bullets. To ensure you didn't get .310 or .311 diameter bullets. |
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Posted: 11/24/2015 1:26:24 PM EDT
[#5]
Now that you mention it, the chamfer that I am putting on my casings seems steep, it looks like maybe just a little more narrow than a 45, I'll pick up a vld
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Posted: 11/24/2015 4:22:10 PM EDT
[#6]
I remember reading an article/test a few months ago that someone did that indicated imperfections in the base of the bullet impact accuracy more than at the tip FWIW.
I use the lyman chamfer/deburring, technically I just use the bits, I use a cordless screwdriver (not a drill) with a adapter to let me attach it to the screwdriver. When you reach the point you're deburring 100's of cases at a time you either get world class man hands or you go power tool. |
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Posted: 11/24/2015 5:43:41 PM EDT
[#7]
I will keep that in mind, although the most I have done at once is about 150, I still would like it to be easier for me all around. Thank you guys for the advice, now I'm off to buy a vld chamfer tool.
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