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Posted: 12/19/2009 6:11:11 PM EDT
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First off, I don't want this to turn into a debate about Dillon vs Giraud trimmers. I have both and know the advantages/disadvantages of each, the main disadvantage of the Dillon being the lack of inside chamfer cut.
My question is why did Dillon set the angle of their cutting blade to cut a 4 degree outside bevel instead of something like a 30 degree inside chamfer? Using my photoshop skills, I put together what something like that would look like and didn't see any reason why it couldn't be done. ––––––––––Current Trimmer–––––––––––––––––––––––––––––––-Chamfer Cut Trimmer (photoshop)––––––––  
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Quoted:
Ask DILLON ??? My cut appears nice and square I did ask DIllon and sent a link to this as well, but I was just wondering if anyone else could think of a reason why it wasn't done this way. I agree that the way the Dillon trimmer cuts now appears almost square and I have never had an issue loading any boat tail bullets, but I think a chamfer would just give more flexability in bullet choice (i.e. flat base). |
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Quoted: Good question. Interested to hear there reply. I'd like to see them modify the adjustment process, so you could easily move the 1200B from say your .223 to your .308 toolhead without messing up up the adjustment. All they would really need to do is make an upper die lock ring that locks into place like RCBS dies, using a brass set screw. Hmm, maybe someone with a drill press and a the proper tap can make a few and sell for a small profit. -Deke |
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Quoted:
Quoted:
Good question. Interested to hear there reply. I'd like to see them modify the adjustment process, so you could easily move the 1200B from say your .223 to your .308 toolhead without messing up up the adjustment. All they would really need to do is make an upper die lock ring that locks into place like RCBS dies, using a brass set screw. Hmm, maybe someone with a drill press and a the proper tap can make a few and sell for a small profit. -Deke Yep. another good idea the part number is #13559 http://www.dillonprecision.com/content/p/9/pid/25289/catid/8/RT_1200_Upper_Die_Lock_Ring |
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Quoted:
Quoted:
Quoted:
Good question. Interested to hear there reply. I'd like to see them modify the adjustment process, so you could easily move the 1200B from say your .223 to your .308 toolhead without messing up up the adjustment. All they would really need to do is make an upper die lock ring that locks into place like RCBS dies, using a brass set screw. Hmm, maybe someone with a drill press and a the proper tap can make a few and sell for a small profit. -Deke A cross lock die locking ring would even be better!!! I hate the rcbs lock rings Yep. another good idea the part number is #13559 http://www.dillonprecision.com/content/p/9/pid/25289/catid/8/RT_1200_Upper_Die_Lock_Ring |
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Quoted:
Quoted:
Good question. Interested to hear there reply. I'd like to see them modify the adjustment process, so you could easily move the 1200B from say your .223 to your .308 toolhead without messing up up the adjustment. All they would really need to do is make an upper die lock ring that locks into place like RCBS dies, using a brass set screw. Hmm, maybe someone with a drill press and a the proper tap can make a few and sell for a small profit. -Deke I have been looking at doing this. A buddy of mine has a machine shop and he is going to help me out hopefully over the winter break. 
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I just received this reply from Dillon:
The reason for the 4 degree outside bevel is to deburr the outside edge of
the case. In our experience trimming the case from the inside out, as a 30 degree inside bevel would do, is it can push the case neck material outward instead of cutting it, and when the case is withdrawn from the die you get a paper-thin lip left on the top of the neck. Some customers with access to die grinders have actually ground a V-shaped cutting notch in the carbide cutter, to allow both inside and outside chamfering at the same time. We don't do this, as first the cost to do so is quite expensive, there is some loss during the notching process, and it makes the cutter caliber specific. At your service, Sales Manager, Dillon Precision I figured they had a reason for it, the v-notch also seems like it would be a good idea if you have access to something that could make a precise cut on a carbide blade. Even though it would be caliber specific, the blade has three sides and takes only seconds to swap out. That may be something to try in the future. |
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