Neck or FL bushing dies for precision?

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Rmeju

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I'm in the process of upgrading some equipment in my reloading room and, as many others have, I've started looking at the Redding and Forster bushing dies for my sizer.

The Forster neck die (and its bushings) let you control neck tension, are a little cheaper, and seem to be well regarded. Some claim neck sizing only extends brass life, while others say that "done properly" FL sizing cases can last just as long (not sure if this just means "don't bump the shoulder too far back," or if there's something more to it). Forster does not make a bushing type FL sizer.

The Redding Type S FL sizer also allows control of neck tension, but many seem to claim that FL sizing is simply better for accuracy purposes, whether or not case life suffers as compared to neck sizing. Accuracy is my primary concern, so this is the way I'm leaning. As another plus, I understand that even a neck sizing bump die will eventually require a body sizing operation sooner or later, meaning I'd need to buy a body or FL size die if I just went the Forster route, something I wouldn't need to do with Redding Type S FL sizer.

Another post I found here (see post #4) claims that simply buying a regular Forster sizer and having them hone the neck for $12 is even better than the Redding. The poster appears to know what he's talking about, but the Forster website only says this process is helpful in certain circumstances that don't seem to apply to me (i.e. your brass has thick necks and/or you won't turn after neck thickens on repeated firings). Presumably, if one goes this route, they'd essentially specify the hone size just as they would select a bushing for one of the above dies.

FWIW, I currently have a Lee collet neck sizer, which is how I've been sizing for the past few firings. Results have been decent, but I'd like to see if I can improve, and in any case, it won't bump the shoulder, so I'm looking for a sizer that will at least do that much.

I'd like to know what you precision shooters out there think about these (or other alternatives). What works best for accuracy?
 
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When I was shooting in 1,000 yard F Class Competition, the hot set up was the Redding Bushing Neck Die used in conjunction with the Redding Body Die. This was prior to the introduction of the Redding Type S Dies. All of the dies you mentioned will work well, it's just a question of which you prefer. What we found to be the accuracy "factor" was low neck tension using Lapua brass. Hope that helps.

Don
 
FWIW, I currently have a Lee collet neck sizer, which is how I've been sizing for the past few firings. Results have been decent, but I'd like to see if I can improve, and in any case, it won't bump the shoulder, so I'm looking for a sizer that will at least do that much.

Go with the Redding type "S" FL sizing die . Reason being is with the bushing removed or no bushings it's just a body die . I know of a few guys the use the Redding type "S" as a body die only the use there Lee collet die to size the necks . There say the run out is excellent when done that way .

So you don't even need bushings yet . You can continue to use your collet die and only use the body die when needed or you can use the body die every time
then the collet die for the necks .

while others say that "done properly" FL sizing cases can last just as long (not sure if this just means "don't bump the shoulder too far back," or if there's something more to it).

No that's about it . Only bumping your shoulders back .002 or so is the difference along with the necks not being sized down to much at first . Anything more then .003 bump and you'll start to get stretching at the web ( down just above the head in the case wall ) . The other thing the bushings help and even your collet die is that they do not size down the neck way more then needed only to need the expander button to pull back through and expand the necks back to the correct size as standard dies do . That over working of the necks will cause them to split sooner .
 
Thanks guys.

USSR: Unfortunately, Lapua doesn't make my caliber, but Nosler has some pretty good brass. What neck tension did you find worked best? .001"?
 
Yep, .001". Then we would seat the bullets out about.020" further in the case than chamber dimensions and soft seat the bullets when chambering. With my 6.5x55, I found a reduction of .9 grain when doing this produced the same velocity as a normally seated bullet.

Don
 
Same thing we did in Benchrest, soft seat into the lands. "square" rifling marks on the bullet was talked about. .020 into the lands was talked about.
But yes, light neck tension and soft seated into the lands to help with start pressure and help align the bullet. But that was with tight necked chambers and cases FL sized to fit the chamber very tightly. I would not seat into the lands on a standard chamber. Some do, but I don't. You want the round to be able to try to center its self. Something it can't do if it is jammed in there crooked with no wiggle room. My .222 Mag will shoot lights out .040 from the lands.
 
I use Wilson neck bushing dies and seater

http://www.lewilson.com/

Wilson was making his dies long before Redding but now with Redding I can buy FL Type Sizer and my Wilson bushing fit that die. Redding has option of using Retainer pin instead of expander ball so not working necks much.

I shot some BR and most of those rifles were tight neck and how they were seated I won't call SAAMI spec and not something I would do with my hunting rifles.
 
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