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Long Range Hunting & Shooting Nightforce Optics


View Poll Results: How do y'all prepare your ammo for long range hunting?
Full lenght resize 129 48.86%
Neck size only with occasional shoulder bump 133 50.38%
Factory loads only 2 0.76%
Voters: 264. This poll is closed

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Full length resize or neck size only for y'all long range hunters?

 
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  #57  
Old 06-27-2013, 12:13 PM
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Join Date: May 2012
Posts: 150
Re: Full length resize or neck size only for y'all long range hunters?

I neck size almost all of the cartridges I reload, but have never worried much about the shoulder bumping issue. The whole idea, as I see it, of neck sizing is to produce a case that fits perfectly into your chamber. I have three 300 Win mags, and the differences in chamber size and shape among the three is significant. Full length sized cases with RCBS dies produces a case which will work in all three guns, but obviously fits none of them well, hence the neck sizing. I keep all cases in boxes labeled for each rifle. The 300 WM sized full length headspaces on the belt; neck sizing produces a case that headspaces on the belt AND the shoulder. Bumping the shoulder back affects that and you lose the added cartridge stability in the chamber, thereby affecting accuracy. As long as the case fits nicely in the chamber when the bolt is closed, why would you want to bump the shoulder back? I set my neck sizing dies to stop right where the neck and the shoulder meet, and I have never had any problems.
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  #58  
Old 06-27-2013, 12:53 PM
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Join Date: Sep 2008
Location: Montana
Posts: 380
Re: Full length resize or neck size only for y'all long range hunters?

I too have a couple different rifles for the same cartridge, but I FL size them all. I set my dies up differently than some folks though as I set the die to FL size but only bump the shoulder back 0.002" or so. I set the die for the rifle that needs the shortest case after sizing and then use some machine die shims to get the proper height on the other rifles cases. This way I take the time to set my die and just annotate in the log books which cases need the shims, and never have to worry about cases getting too tight in the chamber when neck sizing only and I also don't overwork the cases. One FL die for each cartridge, minimum bumping of the shoulder, and the cases aren't exactly a "sloppy" fit in the chamber either.

Geb
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  #59  
Old 06-27-2013, 04:59 PM
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Join Date: Jan 2004
Location: New Castle colorado
Posts: 792
Re: Full length resize or neck size only for y'all long range hunters?

I reload my 22-250 on a Dillon progressive press. The progression is; 1. neck size and deprime. 2. powder charge. 3. bump shoulder .002. 4. seat bullet. Dies are Redding, and the neck sizing and seating die are competition dies.
The gun still shoots .5 MOA. A few thousand rounds ago, when the barrel was fresh, it shot in the .3's.
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  #60  
Old 06-30-2013, 08:34 AM
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Join Date: Jun 2001
Location: NW Florida Piney Woods
Posts: 237
Re: Full length resize or neck size only for y'all long range hunters?

Yep.... I've got a Dillon XL650 and have loaded some scary accurate ammo on it...
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If it's long it can't be wrong... LDHunter (Long Distance Hunter) from the Piney Woods of NW Florida. I hunt clearcuts for scrawny whitetails... ;)
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  #61  
Old 08-12-2013, 08:26 AM
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Join Date: Jul 2012
Location: South Africa
Posts: 24
Re: Full length resize or neck size only for y'all long range hunters?

Quote:
Originally Posted by Old teacher View Post
I neck size almost all of the cartridges I reload, but have never worried much about the shoulder bumping issue. The whole idea, as I see it, of neck sizing is to produce a case that fits perfectly into your chamber. I have three 300 Win mags, and the differences in chamber size and shape among the three is significant. Full length sized cases with RCBS dies produces a case which will work in all three guns, but obviously fits none of them well, hence the neck sizing. I keep all cases in boxes labeled for each rifle. The 300 WM sized full length headspaces on the belt; neck sizing produces a case that headspaces on the belt AND the shoulder. Bumping the shoulder back affects that and you lose the added cartridge stability in the chamber, thereby affecting accuracy. As long as the case fits nicely in the chamber when the bolt is closed, why would you want to bump the shoulder back? I set my neck sizing dies to stop right where the neck and the shoulder meet, and I have never had any problems.
How many times have you fired this brass in these rifles? There comes a time when it becomes difficult to close the bolt on these cartridges and then youre forced to bump back the shoulders.
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  #62  
Old 08-12-2013, 08:42 AM
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Join Date: Jun 2001
Location: NW Florida Piney Woods
Posts: 237
Re: Full length resize or neck size only for y'all long range hunters?

I can tell you that I normally just toss brass when I reach the point I'd have to bump shoulders... Of course it varies but usually between 4-10 loadings and by then I'm usually thinking I want to toss them anyway.... I think the number of loadings I usually get out of brass is 5-6.

I currently don't load for any super mags or wildcats where brass is very expensive or hard to find so I may be annealing, and bumping and neck turning in that scenario... Fortunately I have never had to and that's part of why I'm not much of a wildcatter. I just have the time for all that "stuff".... LOL

Bob
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If it's long it can't be wrong... LDHunter (Long Distance Hunter) from the Piney Woods of NW Florida. I hunt clearcuts for scrawny whitetails... ;)
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  #63  
Old 08-12-2013, 01:56 PM
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Join Date: May 2012
Posts: 150
Re: Full length resize or neck size only for y'all long range hunters?

Marlinproud: most of my .300 brass is in the fifth or sixth loadings. (Nosler brass) I have never had a cartridge labeled for a particular gun not fit into the chamber. Perhaps the neck sizer is set low enough that I am bumping the shoulder back a little without knowing it. It is difficult to get a really accurate measurement on a shoulder, but I will measure a few and see if I can notice any discernible difference. I do know that my accuracy increased in all three guns when I switched from full length to neck sizing. The whole point, I assume, of neck sizing is to create a case that fits perfectly into your chamber with no slop anywhere. One of the knocks on belted cases is that they headspace on the belt, not the shoulder, making them a little unstable in the chamber prior to firing. Necksizing, if you do not bump the shoulder back, creates a belted case that will headspace on the belt and the shoulder, creating a very stable situation in the chamber. Bumping the shoulder back creates a space between the shoulder and the front of the chamber, negating the advantage of necksizing . But, you are right about the fit. If the bolt won't close, the whole process becomes pretty moot.
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