How long can 300 Norma Mag OGIVE be to avoid seating below neck junction?
- Thread starter moaflat
- Start date
How long can the entire curved nose of a bullet be...
Not sure what question it is that youre trying to ask but as phrased it makes zero sense. Probably why your smith told you no.
I think you might be trying to figure out what freebore would match appropriately with those bullets?
Id seat the bullet in a few dummy rounds where you want them and ask him to throat it to fit with however much jump you want in front of that. Im sure he could manage then.
Your ogive dimension provided of 3.780 could be that at any position; we dont have enough info to work off of with just that one axis dimension of a three dimensional object.
Not sure what question it is that youre trying to ask but as phrased it makes zero sense. Probably why your smith told you no.
I think you might be trying to figure out what freebore would match appropriately with those bullets?
Id seat the bullet in a few dummy rounds where you want them and ask him to throat it to fit with however much jump you want in front of that. Im sure he could manage then.
Your ogive dimension provided of 3.780 could be that at any position; we dont have enough info to work off of with just that one axis dimension of a three dimensional object.
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Question is genuine, ex SARS Vet and sniping not what I after perfect Terminology perhaps it differs here no Apologies. From Massachusetts - this is genuine question.. I would like to use a throat reamer to extend out my current OGIVE from 3.705” to 3.780” so I then could easily seat new longer VLD projectiles. Hope that explains it better…. Do you see problems with doing that as my gunsmith here does and refuses to explain why… and I thought I would put it out there for insight and your help. Exactly right b6graham , thanks for the clarity. I did provide the gunsmith a dummy round to the preferred new OGIVE 3.780” and just flat refused and would only support going out to 3.766”. And reuses or unable to explain why….do you see any problems with that. My bullet OGIVE to my barrel OGIVE too short. If I seat out to .010” below my projectile bearing surface below the junction.
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That’s a weird situation. You need to extend your freebore and throat it out an extra .075
I know here in the states they have reamers that you could rent and do it yourself by hand, not sure if that exists over there.
How hard is it to find a new smith who is worth a damn?
(Personally I have no issue with encroaching on case capacity, if you actually run out of space in the case and can’t compress any more powder in it and have anemic velocity then I’d say you chose a powder that’s too slow to start with)
I know here in the states they have reamers that you could rent and do it yourself by hand, not sure if that exists over there.
How hard is it to find a new smith who is worth a damn?
(Personally I have no issue with encroaching on case capacity, if you actually run out of space in the case and can’t compress any more powder in it and have anemic velocity then I’d say you chose a powder that’s too slow to start with)
The ogive feature on a 250 A-tip is probably .7” long, maybe more. Its not a single point. Do you mean meplat perhaps, as in the tip of the bullet? Or do you mean the point where the ogive meets the bearing surface neets to be at 3.780. I assume you mean the latter.
Wanting to seat out to 3.760 with .020” left in barrel throat. An bearing surface then just above junction with a little more to be past dreaded donut if necessary. Using N570, Peterson brass, and Quickload (GRT too)
. Not many gunsmiths here…he made the rifle and manufacturer of the barrel.
