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7mm belted cartridge question
- Thread starter Ouch!!
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Re: 7mm belted cartridge question
Absolutely. I have reloaded .300 Wby. for years. They are no harder or easier than non-belted cases. If you haven't read any realoading manuals, I would strongly recommend you do so before getting started. Since the belted magnums don't headspace on the cartridge shoulder, you have eliminated one adjustment to your dies that you might play with otherwise.
Absolutely. I have reloaded .300 Wby. for years. They are no harder or easier than non-belted cases. If you haven't read any realoading manuals, I would strongly recommend you do so before getting started. Since the belted magnums don't headspace on the cartridge shoulder, you have eliminated one adjustment to your dies that you might play with otherwise.
Re: 7mm belted cartridge question
Modern belted magnums, like the 7 RM and 300 WM headspace off of the shoulder, not the belts, like their ancestors do.
I reload a 7 RM and the belt is mostly cosmetic.
Chris
Modern belted magnums, like the 7 RM and 300 WM headspace off of the shoulder, not the belts, like their ancestors do.
I reload a 7 RM and the belt is mostly cosmetic.
Chris
Re: 7mm belted cartridge question
yep. virgin brass may headspace off the belt but after that, you should size the case just enough to headspaces off the shoulder like every other case. i would not size it back to minimum specs unless you don't care if you only get one or two reloads out of your brass.
yep. virgin brass may headspace off the belt but after that, you should size the case just enough to headspaces off the shoulder like every other case. i would not size it back to minimum specs unless you don't care if you only get one or two reloads out of your brass.
G
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Re: 7mm belted cartridge question
The best way to ensure long belted case life is to start with it headspacing off the shoulder. In your case, neck the 7s up to 30 and then start necking them back to 7 until you can just close the bolt with some resistance. You have created a false shoulder (a 30 cal bump in the neck) for the case to headspace on. Complete your reloading and fire. Now the case is headspaced on the shoulder and the belt is just a decoration. For future reloads, set the die so the case shoulder not the belt is the point of contact. The cases will probably wear out before you have to bump the shoulder back a tad to ensure easy chambering.
Belted cases were invented to allow purposley made undersized cases to work in chambers eroded by cordite, dirty or rusty as was the case in India and Africa back in the period before & after WW one. You gotta have something to headspace on and the belt was, back then, a good idea and more reliable for feeding in a bolt gun than a rim.
There is no reason for them today in a rifle that is well maintained but they have history and a high "cool index".
Get them to headspace on the shoulder and they are as easy to load as a 308.
The best way to ensure long belted case life is to start with it headspacing off the shoulder. In your case, neck the 7s up to 30 and then start necking them back to 7 until you can just close the bolt with some resistance. You have created a false shoulder (a 30 cal bump in the neck) for the case to headspace on. Complete your reloading and fire. Now the case is headspaced on the shoulder and the belt is just a decoration. For future reloads, set the die so the case shoulder not the belt is the point of contact. The cases will probably wear out before you have to bump the shoulder back a tad to ensure easy chambering.
Belted cases were invented to allow purposley made undersized cases to work in chambers eroded by cordite, dirty or rusty as was the case in India and Africa back in the period before & after WW one. You gotta have something to headspace on and the belt was, back then, a good idea and more reliable for feeding in a bolt gun than a rim.
There is no reason for them today in a rifle that is well maintained but they have history and a high "cool index".
Get them to headspace on the shoulder and they are as easy to load as a 308.
Re: 7mm belted cartridge question
<div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">My friend it sounds like you don't have a loading manual. Get one. </div></div>
+++++++++100!!!!!!!!!!
<div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">My friend it sounds like you don't have a loading manual. Get one. </div></div>
+++++++++100!!!!!!!!!!
Re: 7mm belted cartridge question
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Fuzzball</div><div class="ubbcode-body">"I have recently started reloading. Is it possible to reload the belted magnum cartridges?"
My friend it sounds like you don't have a loading manual. Get one. </div></div>
Not my round, didnt take the time to read about it. I will make sure to read next time before maybe asking a question that someone else my ask!!
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Fuzzball</div><div class="ubbcode-body">"I have recently started reloading. Is it possible to reload the belted magnum cartridges?"
My friend it sounds like you don't have a loading manual. Get one. </div></div>
Not my round, didnt take the time to read about it. I will make sure to read next time before maybe asking a question that someone else my ask!!
