Mar 25, 2010 · The traditional or secant ogive is a surface of revolution of the same curve that forms a Gothic arch; that is, a circular arc, of greater radius than the diameter of the cylindrical section ("shank"), is drawn from the edge of the shank until it intercepts the axis.

Jan 28, 2015 · Effects Of Cartridge Over All Length (COAL) And Cartridge Base To Ogive (CBTO) – Part 1 By Bryan Litz Many shooters are not aware of the dramatic effects that bullet seating depth can have on the pressure and velocity generated by a rifle cartridge. COAL is also a variable that can be used to fine tune accuracy.

Apr 26, 2010 · The notion of reforning the tangent ogive into a secant profile is a waste of time and bullets, trust me on this. Even minor reforming, like pointing noses, can result in seriously degraded accuracy.

Apr 9, 2005 · The ogive is the radiused portion of the bullet between the meplat and the bearing surface. It's actually a French archetectual term that translates to "pointed arch" like you see in old cathederals.

Jun 15, 2009 · I am getting into reloading and would like to know is it better to seal the bullet to an OAL or ogive length and why? Is it necessary to sort the bullets? Primary use will be for shooting holes in paper and varmint shooing.

Nov 10, 2003 · I have found differences in the bullets over all length, but also difference to the base to ogive measurement of the individual bullets too you could actually make an "ogive measuring tool" yourself, the true ogive is just where the bullet finally reaches full diameter.

Apr 16, 2003 · Two stoney point comparators ($40)attached to dial caliper blade with ogive inserts put in them. The base comparator comes up to the back of the bearing surface and the front measures at the ogive.

Dec 24, 2020 · I have a standard rcbs seater die and stem. It seats bullets close to the tip, what I'm asking is do they make a seater stem that seats off the bullet ogive?, because I'm seeing ogive to where the seated die contacts bullet differences. I know the variant is …

Aug 10, 2003 · In ballistics or aerodynamics, an ogive is a pointed, curved surface mainly used to form the approximately streamlined nose of a bullet or other projectile.

Dec 4, 2004 · Lately I am a bit frustrated that bullets have fairly large lot-to-lot dimensional differences with respect to ogive location. This past weekend I was loading .338 Lapua and the box of 285 ELDMs was empty and the last of that lot. I grabbed another box and without measuring the bullet ogive...