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Tom, Your statement is true for hollow point designs, but not for full metal jacket ones. And yes, there are full metal jacket match bullets available. Are some of these used for BR competition? I don't know.

Onomrbill, Sorry, never wrote for Scientific American. I have read a few issues of it, however. Asa

Look for a highpower prone match. F-Class normally shoots alongside them. Major ranges in the area: Bend, OR. May be starting matches soon. http://cosa.netgarage.net/ Douglas Ridge, OR. Matches out to 1000 yards. www.douglasridge.org Tri-Cities Shooting Association, Tri-Cities, WA...

Shoot cast lead .312" to .32" caliber bullets with smaller amounts of pistol or faster rifle powders. Much less recoil, and less wear on the barrel too. See http://home.comcast.net/~gavinsw/guns/castbulletmilitaryrifle.pdf for an example. Another option: shoot lighter bullets. 123-125...

Dick, .303 Lee-Enfield #4. UK service rifle from WW2. Fed from a 10 round magazine, has a rear locking bolt. See http://en.wikipedia.org/wiki/Lee-Enfield#Rifle_No_4 for a brief summary.

Arizona78, Have you considered buying an F-Class rifle? Savage makes four models of rifles which are suitable for F-Class. The BR and F-Open models are suitable for Open Class, while the 12 F/TR and the Palma rifles are suitable for F-T/R. Prices listed on their webite...

Rifle matches at Camp Butner are often run by the North State Shooting Club, whose website is http://www.northstateshootingclub.com/newindex.htm . This page also has contacts, which may be helpful in determining a number of things about matches there. NSSC's website says the match on the...

IIRC, the distinctive popping sound of the UH-1 and AH-1 was due to the location of the horizontal stabilizer. Note on the UH-1Y in the photo, this component has been relocated towards the vertical stabilizer. The same change has been made on the AH-1Z Viper as well. Wikipedia links: AH-1...

Try contacting Phil Scholl - contact info may be found at http://benchrest.com/archive/index.php/t-42891.html . Not sure if the contact info in that thread is still good - have never done business with him before. Asa

The "Target BT Long Range" has the same exterior profile as the BT. However, jackets are thicker to keep bullets from blowing up in flight.

Yes, they're real awards! What are Ig Nobel prizes awarded for? From the website at http://improbable.com/about/ Why We Do It Our goal is to make people laugh, then make them think. We also hope to spur people's curiosity, and to raise the question: How do you decide what's important and...

Mike, This is only true of the AR-10 and rifles such as the HK-416. Most AR-15 clones don't have a firing pin return spring, and neither do SR-25s. Can't speak about the DPMS .308 rifles, never handled one before. Had one in an AR-15. Rifle went bang as soon as the bolt closed, trigger...

And this is why NOBODY makes (or sells) single shot load adaptors for the M1A/M14 family of rifles. Mike in Co, This is not a flame, but the AR series of rifles had its issues with slam fires as well. When the M16 was first introduced, it had slam fire issues on the range. Redesigning primer...

There were JU-88s with radial engines too. Mounting points on certain aircraft models were designed to accept either radial or inline engines. See http://members.fortunecity.com/nightfighters/Ju88/Photos.html for examples of JU-88s with radial and in-line engines. See also the Wikipedia entry...

Lots of impact area behind the targets. Ideally, over a mile's worth. Either that, or a tall mountain. Either one helps keep bullets in the playground - which is far better than bullets in the downrange neighbor's house.

I have never worked with Belzona. However, on the ship I served on in the Navy, it was occasionally (and illegally) used to repair small cuts (caused by the steam) in the joints beween segments of main steam pipes. Conditions inside such a line are (IIRC) ~660 psig @ 910 *F - this is a...

From the article: The castor seed contains ricin, a toxic protein. Harvesting castor beans is not without risk. Allergenic compounds found on the plant surface can cause permanent nerve damage, making the harvest of castor beans a human health risk. India, Brazil, and China are the major crop...

This is really sad: http://www.msnbc.msn.com/id/21134540/vp/43380758#43380758

Nancy Tompkins' book is titled "Prone and Long-Range Rifle Shooting". Second printing available this summer at http://www.rifleshootingbynancy.com/. NOTE: In a photo under the "The Authors" tab, Mid Tompkins is not holding a Palma rifle.

Use a 5 to 10% solution of warm sodium hydroxide, followed by a neutralizing wash of something acidic. (Vinegar is acetic acid.) Source: http://design.caltech.edu/micropropulsion/styphnate.html Another option is to use a sodium carbonate solution (preferrably warm), followed again by an acid...