Recent content by Warren Jensen

Can't be sure without measurements but what you are describing is the base of the bullet or the start of the boattail is clearing the case neck before the engraving seal is established. The gas pressure is blowing back and denting the shoulder before the case has completely explanded to seal...

S1, Time to come out from behind the veil. If you feel free to discuss my background, lets find out what yours is. I give my name and my website. From this you know where I work, where I live, my telephone number, how I was trained and the basis of positions I take and the opinions I give...

S1, So, the relationship between the aerodynamic drag and the angular drag does not cause the spin rate to increase relative to what is just necessary to keep the bullet pointed forward?

S1, Simply put, your facts and theory are wrong. For one the GS, as you put it, continues to increase on the 147 gr. It is above 9.0 at 800 yds. I have spent many years arguing the math and the theoretical with some very bright and experienced ballisticians, Bob McCoy being one. I...

S1, It is not only possible to cause instability due to overspinning it happens quite a bit. Not at the muzzle but many yards down range where the increase in SF causes a dramatic precession and yaw, which can lead to instability. At the muzzle there is insufficient different between bullet's...

Blaine, Ruprecht gives the formula. Essentially tractability is inversely related to the gyroscopic stability factor to a point. As the SF exceeds 4.0 due to overspin (a more correct term than overstabilized) the nose of the bullet wants to pull high and to the right. There are...

DAN TEC and Brent, I agree those are good ideas and are overdue. There are only so many minutes in a day and the last eight months have found me trying to squeeze more than 1440 if them into a day. The web sites will be updated. Thank you for the comments.

Lets look at that statement by Mr. Coburn. Identify specifically where the term ".408 bronze bullets" is used in our website or by our representatives. You used this term earlier in this thread. Identify specifically where the price,"around $2.50 each" is used in our website or by our...

DAN TEC The price of the bullets are $1.25 retail, an order of 1000 gets a wholesale price quote. These are prices for the current level of production. When the orders are sufficient to keep the machines running full-time the price will come down to around $.65 each, wholesale. Dave Manson...

Please note the tactics of Catshooter, AKA Paul Coburn. He makes a number of erroneous charges. When they are proven to be invalid he finds part of one of the pieces of information that is confusing to attack. By attacking this one piece of information he then expands that the author is...

5/100,000 is the same thing as 50/1,000,000. I said .00005 or one/50 millionth. I did not invent that terminology. It was first used by Mitutoyo in describing their instruments. Whether you want to agree with that is up to you, but the .00005 is accurate.

For the record: The .408 CheyTac bullets come in two different alloys, neither one of which are brass or bronze. The standard digital handmike used by our machinists measures to .00005, or one/50 millionth of an inch. We adjust our machines to run at that level of accuracy and they do just...

Adam, This is probably not the best forum to obtain the information you are looking for. I would suggest getting in contact with a game agency or animal control department in India in a region where there still are tigers. An embassy could help you find the right place. You need to talk with...

Brent, They are $1.80 each.

Ross, We have been to the ShotShow. Just getting back into the swing of things. I had 107 unread messages when I got back, and I was answering some while I was there. The brass is available. Give us a call.