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May 15th, 2022, 07:37 PM #41
Re: Need Input for Building a Round
Walleye, another way of bumping the shoulder is by smoking it with a birthday candle. A little soot on the should and you crank your die down until it leaves a ring on the should. YouTube should have videos of how to do it.
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June 20th, 2022, 09:24 AM #42
Re: Need Input for Building a Round
Next up...I'm working with some Hornady 225gn heads. I'm finding wts vary from 224.03 to 224.08. Is this acceptable? Lengths of heads is close but I didn't write it down so I forget how close. Maybe next time. Round OAL is varying on me a little and I'm trying to figure out why. Could it be due to different rates of travel when I press the bullet on? IIRC, max OAL is 3.320 and for the most part, I'm at 3.318+-.001 but two of them are more like 3.309. On one of those, I know I drew down faster on the seating ram.
Gender confusion is a mental illness
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June 20th, 2022, 09:40 AM #43Grand Member
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June 20th, 2022, 02:48 PM #44
Re: Need Input for Building a Round
Do you trim your brass to all the same length?
Do you also chamfer your necks? There really shouldn't be much effort on the seating ram such that you'd be creating velocity.. Also you can get sizing dies that have bushing for neck diameter, so you can set your neck sizing for a more consistent tension on the bullet that helps accuracy.SigGendered
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June 20th, 2022, 03:01 PM #45
Re: Need Input for Building a Round
Yep but if they were off, would that affect the OAL?
Do you also chamfer your necks?
There really shouldn't be much effort on the seating ram such that you'd be creating velocity..
Also you can get sizing dies that have bushing for neck diameter, so you can set your neck sizing for a more consistent tension on the bullet that helps accuracy.
I also got a set of micro-adjustables at the last show. I haven't read the directions yet but would using them help?Gender confusion is a mental illness
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June 20th, 2022, 04:07 PM #46
Re: Need Input for Building a Round
The manual would be the ultimate info, otherwise if you can take out the decapping pin and expander and see if there's a bushing in the top of the die that falls out when inverted.
My thoughts are going to trying to get your neck tension at a minimum to keep from having to slam the seating ram down, but maybe that not the case and you were just doing it as a "what-if" ? The bushing allow you to custom tailor your neck thickness with your bullet diameter and a desired next tension to keep it consistent. Consistent tension should mean a consistent seating pressure/effort and a consistent COAL...SigGendered
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June 20th, 2022, 05:08 PM #47
Re: Need Input for Building a Round
OK. Seating is effortless but I am using an ammomaster to do it so that's no surprise. I just went a little faster a couple of times to see if it made a difference. I'll look into that bushing aspect as I increase my knowledge of the process. My skull is thick so it takes a while to get everything in there.
Gender confusion is a mental illness
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August 13th, 2022, 11:06 AM #48
Re: Need Input for Building a Round
I've been studying and thinking and have another question. I've heard of 'bumping the shoulder' every three reloads or so. I scored a set of precision mics for this at a gun show and I've figured out how to use it. I think I've also figured out that all that it does could be ciphered out by a knowledgeable guy with his own rifle and spent rounds. Anyhow, I'm beginning to understand what bumping the shoulder means and that brings me to my next question...The reloading dies that I have are full length resizing. It is possible to use these for neck sizing only or do I need another die for that?
Gender confusion is a mental illness
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August 13th, 2022, 11:31 AM #49Grand Member
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September 6th, 2022, 07:24 AM #50
Re: Need Input for Building a Round
Rather than clutter up the other thread and keeping this one in a manner that others may make use of it in the future, I'll post up here on my .338 WINMAG adventure.
I picked up a bag of processed brass at a gun show somewhere down the line and I'm working on it now. Out of 50 pieces, about 38 are Hornady, 10 are Norma and 1 WIN and 1 Barnes. The brass seemed to have been cleaned, decapped and sized. I had to trim some but not many and I chamfered them all. I only apply light pressure to the chamfering tool and make about 2 spins in it. Is that sufficient? Should I do anything more to the brass, since it all checks out OK in dims and defects? I can't think of a reason but I'm new to this game.Gender confusion is a mental illness
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