Tight Neck Chambers
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Re: Tight Neck Chambers
introduces the bullet to the throat straighter giving better accuracy. Also increases case life. Normally .001" larger than loaded round. Some run .002" larger where factory round can be .008" larger. Alot of these will spring back on firing and you can seat the next bullet in case mouth without sizing.
introduces the bullet to the throat straighter giving better accuracy. Also increases case life. Normally .001" larger than loaded round. Some run .002" larger where factory round can be .008" larger. Alot of these will spring back on firing and you can seat the next bullet in case mouth without sizing.
Re: Tight Neck Chambers
great on accuracy, but watch out for dirts and loose debrides that may also get into the chamber under field conditions. This may cause the round to not chamber. For sure this is one condition where "ramming it in" may not be the best solution....
great on accuracy, but watch out for dirts and loose debrides that may also get into the chamber under field conditions. This may cause the round to not chamber. For sure this is one condition where "ramming it in" may not be the best solution....
Re: Tight Neck Chambers
Tight necks can be a pain in your ear! If you are going with a chambering that allows you to use Lapua brass forget about the tight neck crap. I did one in 6br simply because i had some brass that was already turned. If i had to do it over again i wouldnt have done it. I also have a tight neck 30BR. I dont regret that move, but really there wasnt any choice. I'm just a fella that is learning as i go, so take what i say for what its worth! Lee
Tight necks can be a pain in your ear! If you are going with a chambering that allows you to use Lapua brass forget about the tight neck crap. I did one in 6br simply because i had some brass that was already turned. If i had to do it over again i wouldnt have done it. I also have a tight neck 30BR. I dont regret that move, but really there wasnt any choice. I'm just a fella that is learning as i go, so take what i say for what its worth! Lee
Re: Tight Neck Chambers
You have three choices.
There are tight neck chambers that require neck turning. After 31 years of competition shooting they do become a pain in the ass. The scale is tipping towards convenience rather than all out accuracy these days. Also you need .002-.003" clearence over a loaded round for best accuracy.
Factory chambers that swallow anything and everything.
Custom chambers that the specs are tightened up to promote accuracy and brass longevity, while maintaining ease of loading.
With the good brass available now, with the exception of my target rifles, I build all my own rifles going the custom chamber route.
You have three choices.
There are tight neck chambers that require neck turning. After 31 years of competition shooting they do become a pain in the ass. The scale is tipping towards convenience rather than all out accuracy these days. Also you need .002-.003" clearence over a loaded round for best accuracy.
Factory chambers that swallow anything and everything.
Custom chambers that the specs are tightened up to promote accuracy and brass longevity, while maintaining ease of loading.
With the good brass available now, with the exception of my target rifles, I build all my own rifles going the custom chamber route.
Re: Tight Neck Chambers
I have a couple of tight necks, and they are a pain. It's hard to tell if they shoot any better than my no turn necks with lapua brass. I feel like everyone should have at least one tight neck, just to know what it's like. But Dave gave very sound advice above.
I have a couple of tight necks, and they are a pain. It's hard to tell if they shoot any better than my no turn necks with lapua brass. I feel like everyone should have at least one tight neck, just to know what it's like. But Dave gave very sound advice above.
Re: Tight Neck Chambers
Thanks. I have a 243 AI with a 274 neck. I did not order it that way but I told the smith I would take it because I turned my necks. I was just curious. It is a pain in the ass but so is anything associated with improved cartridges. My 243 Lapua brass will sometimes chamber without turning.
Thanks. I have a 243 AI with a 274 neck. I did not order it that way but I told the smith I would take it because I turned my necks. I was just curious. It is a pain in the ass but so is anything associated with improved cartridges. My 243 Lapua brass will sometimes chamber without turning.
Re: Tight Neck Chambers
More important than a tight-necked chamber is a short oal chamber. For best accuracy, and longer case life, you want a .001 or less Over All Length (over minimum SAAMI). This amounts to just being able to close on a Go Gage.
There are sloppy chambers that are within specs, nothing you can do about one of these, but probably can have your barrel set back to reduce oal of you chamber. If you own a Wilson or RCBS precision mic to check dimensions of your brass, mic a virgin cased round, fire it and note the difference. If you are seeing under .0015" of case stretch, you are in great shape; if more, and .005 or .006 is within spec, then might consider setting back your barrel
Short chamber will give you best results when combined with a custom reamed chamber. Factory ammunition and handloads will perform better and last longer with less stretch dynamic going on.
More important than a tight-necked chamber is a short oal chamber. For best accuracy, and longer case life, you want a .001 or less Over All Length (over minimum SAAMI). This amounts to just being able to close on a Go Gage.
There are sloppy chambers that are within specs, nothing you can do about one of these, but probably can have your barrel set back to reduce oal of you chamber. If you own a Wilson or RCBS precision mic to check dimensions of your brass, mic a virgin cased round, fire it and note the difference. If you are seeing under .0015" of case stretch, you are in great shape; if more, and .005 or .006 is within spec, then might consider setting back your barrel
Short chamber will give you best results when combined with a custom reamed chamber. Factory ammunition and handloads will perform better and last longer with less stretch dynamic going on.
