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Long Range Hunting & Shooting
215 Berger Target for hunting
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<blockquote data-quote="Educated Redneck" data-source="post: 1635175" data-attributes="member: 84387"><p>This would be correct thinking on most cartridges. Usually hand loaders want a LONGER throat as to seat the bullet out further in the case and they ask the barrel maker to provide a longer custom throat based on a few concentric dummy rounds or via a print. The smith runs a throat reamer after they do the whole chamber to accommodate this (I think I have that right). I think that's what you wanted to do right. Problem is with the stock factory sammi or what ever it is reamer for a weatherby chamber has a very long throat from the get go. Not weatherby guns per say, but the chamber designs named after them is what I mean. To my knowledge, they all have very long throats. If I was making a custom weatherby, I'd ask them to make a throat SHORTER than a factory chambering as to touch, seat, or jump the lands during my load development as you mentioned you desire. To do this from a smith standpoint specifically on a weathby reamer, you'd need just a chamber reamer that does not cut the throat (these reamers are rare and your smith likely didn't have one), and then do the throat after the body is reamed. You'd ask the smith to ream the thoat shorter than saami in this case. Said another way, weatherby chambers all have LONG throats from the factory and so would any ordinary reamer. The long throat was an old school trick to increase velocity without increasing pressure. Big jump = more speed and less pressure versus into the lands. For this reason and the fact that most weatherby chamberings are overbore and excessive powder capacity for the caliber (you can only make a bullet go so fast before the pressure goes up drastically exponentially not linear which has other negative shooting effects) is why I don't opt for weatherby chamberings. Clear as mud right? Also, I'm knowledgeable enough to be dangerous and not an expert so someone may correct some of my ramblings, but I think I got the most of it.</p></blockquote><p></p>
[QUOTE="Educated Redneck, post: 1635175, member: 84387"] This would be correct thinking on most cartridges. Usually hand loaders want a LONGER throat as to seat the bullet out further in the case and they ask the barrel maker to provide a longer custom throat based on a few concentric dummy rounds or via a print. The smith runs a throat reamer after they do the whole chamber to accommodate this (I think I have that right). I think that's what you wanted to do right. Problem is with the stock factory sammi or what ever it is reamer for a weatherby chamber has a very long throat from the get go. Not weatherby guns per say, but the chamber designs named after them is what I mean. To my knowledge, they all have very long throats. If I was making a custom weatherby, I'd ask them to make a throat SHORTER than a factory chambering as to touch, seat, or jump the lands during my load development as you mentioned you desire. To do this from a smith standpoint specifically on a weathby reamer, you'd need just a chamber reamer that does not cut the throat (these reamers are rare and your smith likely didn't have one), and then do the throat after the body is reamed. You'd ask the smith to ream the thoat shorter than saami in this case. Said another way, weatherby chambers all have LONG throats from the factory and so would any ordinary reamer. The long throat was an old school trick to increase velocity without increasing pressure. Big jump = more speed and less pressure versus into the lands. For this reason and the fact that most weatherby chamberings are overbore and excessive powder capacity for the caliber (you can only make a bullet go so fast before the pressure goes up drastically exponentially not linear which has other negative shooting effects) is why I don't opt for weatherby chamberings. Clear as mud right? Also, I'm knowledgeable enough to be dangerous and not an expert so someone may correct some of my ramblings, but I think I got the most of it. [/QUOTE]
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