NEI Handtools, Inc
Considerations When Ordering & Custom Work
Prices subject to change without prior notice, once order is placed it may not be canceled. We custom produce our mould to your specification. So please consider this prior to purchase. If your not in agreement please shop elsewhere.
or refunds) Our products are custom made please make sure you understand
this prior to order.
We will not exchange, return or refund for wrong item ordered.
THINGS TO CONSIDER WHEN ORDERING A MOLD
CF Rifles & Auto Pistols: Always size the bullets to at least .001 to.002 over groove size. If you have a modern piece made in the US / Japan, SAAMI standards for the bore/groove are usually met and slugging the barrel is not necessary. If your piece is made in Europe or South America, I would suggest that the barrel be slugged by a competent gunsmith to insure bore/groove measurements. This also goes for old antique arms. A bullet that is a frog hair under groove size will lead like crazy. Leading is caused by gas leaking past the bullet and acting like a oxy-acetylene torch cutting steel. In this case, linotype bullets will lead faster because they won't obturate and seal as a soft bullet would. The vaporized lead is then blown forward of the bullet and then smeared into the wall of the barrel by the passing bullet. Now you have a real problem!
Revolvers: The chamber mouth of the cylinder dictates the size of the bullet, not the groove size of the barrel! The bullet must be sized for a tight push fit through the cylinder. Example: Some 44s have a groove size of .429 and the cylinder mouths are .432 or more. In this example, size the bullet to .432+ and don't worry - when the big light hits the bullet, it will fit the barrel!! If the mouth of the cylinder is smaller than the groove size of the barrel, the pistol will never shoot worth a hoot. Send it back to the factory or have it reamed to .001" over groove size. Remember a hard linotype bullet will lead faster if it doesn't fit.
Muzzle Loaders: Maxi balls are a two dimensional bullet. The front band of the bullet is usually .004" over bore size and the back bands are bore size or a couple thousands smaller. Remember - US made are usually cut to SAAMI standards, but don't bet on that Italian or Brazil piece to be standard. Slug it!!
Paper Patch: Get the book - THE PAPER JACKET by Paul Matthews published by Wolfe Publishing. (602) 445-7810. This will answer most of your questions about paper patching (and a lot more) This type of bullet is a real pain in the posterior, but the results can be rewarding if done correctly.
Tech Note: Bullet lubricants are really not a 'lubricant' as you may think of a bearing lube. Leading is caused by the vaporization of lead by hot
gasses, usually leaking past the side of the projectile and then being smeared on the side of the barrel by the projectile. The 'lube' only prevents the vaporized lead from tinning the steel barrel. The properties of the 'lube' therefore must be opposite that of a tinning flux. It also must help seal the projectile to the barrel either as a solid or a semi-solid under heat and pressure. There is a lot of 'stuff' out there and we're still looking. Let us know if you have an idea for some 'good stuff'.
CUSTOM WORK (No returns or refunds on custom design)
While I truly enjoy making new cherries and participating in the design process, I am forced to add this to the catalog to bring a few of you fellows back down to earth.
DO NOT ask for tolerances that are too tight. Any tolerances written in .001 will not be considered. There are too many variables on your end to hold such close tolerances. I can hold the cherry to them but casting variables can't hold tolerances in .001
Diameters, depending on the design, will be .001 to .003 over sizing dimension. Overall length of cast bullets will be + or - .005, Dimensions of meplat to crimp will be within .010. If it is critical, such as lever action, plan your measurement on the short side.
I cut cherries to dimensions. I can approximate weight by computer calculation which may be + or - 10%. If your criteria is exact weight add $200.00 to the cost of the cherry and send 10 lb. of your alloy. Even then it will be + or - a few grains. One way to get a close approximation of weight is to furnish a sample lead bullet with no voids, either cast or turned from your alloy.
Regarding R&D, the only change that can safely be made to the cherries is reducing the diameter by a few thousandths.
Any major change to the Ogive or OAL is questionable and usually requires a new cherry. I also will not guarantee the performance of your bullet. I will give you the benefit of my experience and point out any
(Here is another piece of government BS instituted by pin heads)
Using this equipment in poorly ventilated areas, cleaning firearms, or handling bullets or ammunition may result in exposure to lead, a substance known to cause birth defects, cancer, reproductive harm, and other serious physical injury. Have adequate ventilation at all times. Wash hands and face thoroughly after handling and before coming into contact with food, chewing material, and smoking material.