Rifle bullets

PA. Rifle bullet impact in welded cans gave 4/4 high order detonations. Thermal stability at 135°, acid in 15—30 minutes at 82.2° heat test, 10 minutes at 82.2°. This material and its homologs from other aliphatic nitro compounds and aldehydes have been suggested as substitutes for NG... 

Power. About 135% of TNT in BalMort Test about 160% of TNT in Trauzl Lead Block Test Rifle Bullet Test. High order detonations Thermal Stability. 9 to 30 minutes in 82.2°... 

MNO has been evaluated as being between Tetryl and TNT in performance, but of considerably lower stability because of a hydrolytic action with w (Ref 5). It is reported to form a eutectic with PETN, having the compn MNO 30, PETN 70%, which is liq at 100° and which, cast, passes a rifle-bullet test (Ref 3). A detailed study of the expl properties of MNO is given by MacDougall (Ref 5). MNO and analagous di-... 

Molex no s 2 3 are physical mixts of AN 52—84, K perchlorate 0—20, DNT oil 7—12, baked cork 1—10, A1 powd 5—7 Ca carbonate 1%. They exhibited satisfactory sensitivity to impact, friction, flame initiation, and had excellent stability. Philips (Ref 4) reported on tests of Molex B and BB , manufd by the National Explosives Co. They are described as physical mixts of AN 80.77—85.06, flake A1 6.02—6.10, DNT oil 4.32—5.84, activated cork 2.55—4.47, Ca stearate 1.10—1.99 and Ca carbonate 0.83-0.95%. They were shown to be stable, to have fairly high brisance, but to be sufficiently sensitive to expl in the rifle bullet impact test. Byers (Refs 1 3) describes blasting expls similar in compn... 

Myrite. An expl contg a mixt of nitrogen dioxide and carbon bisulfide. Its sensitivity to mechanical influences, brisance, rate of deton, and other expl characteristics were detd at PicArsn in 1940. In view of the fact that it is specially sensitive to rifle bullet impact, and has a rate of deton and brisance considerably lower than TNT, it was concluded that Myrite is not suitable for use as a military expl Ref C.J. Bain, Investigation of the Explosive Myrite , PATR 1030(1940)... 

Power by Plate Dent Test. For both mixts, using a 4" thick steel plate, 0.133" indentation Rifle Bullet Impact. Detonation in 5/5 trials with either mixt... 

It was about as sensitive to impact as the Ched-dites, and could be expld by rifle bullet. According to Stettbacher (Ref 3), mixt No II was used again during WWII for military purposes Refs 1) Naoum, Expls (1927), 135 2) Stettbacher (1933), 316 3) Stettbacher (1948), 91... 

Nomenclature Autoignition Temp, °C Gap Test, 50%, Inches Impact Sensitivity Rifle Bullet Impact Test Vacuum Stability Test (ml/g/48hrs 120°) Refs... 

Shock sensitivity of an expl can be gaged by subjecting a sample to the impact of a rifle bullet. In this test the caliber and type of bullet... 

Rifle bullet test. No detonations from impact... 

Ballistic Strength. 100% T NT (BuM ine s) Explosion Temperature. Does not expld or ignite at 360° or below Heat of Combustion. 8l8.1kcal/mole Hygroscopicity. Practically none Impact Sensitivity. Comparable to TNT Power. By Trauzl test, 103% TNT Rifle Bullet Test. No detonations from impact of. 30 cal bullet at 90 ft Thermal Stability. Unsatisfactory, loses 49% of wt in 48 hrs at 75° (International Test) Velocity of Detonation. No information Salts of (m-Nitrophenyll-dinitromethane. Milone and Massa (Ref 2) prepd several metallic salts and found that their expl power decreased with increasing atomic v/t of the metal Following are some of the expl salts K salt—yel crysts ... 

Power. Ballistic Mortar, 9996 TNT Pressure. Max theoretical when exp Id adiabati-cally at Cv, 8956kg/cm2 at d 1.5g/cc and 9553 kg/cm2 at 1.6g/cc. These are 113% of the corresponding values for TNT Rifle Bullet Sensitivity. 10 trials, 7 unaffected, 3 partly burned... 

Projectile Sensitivity. Andreev Belyaev (Ref 32, p 473) showed that PA packed in wooden crates detonates if impacted by a 4g projectile moving at greater than 40Qm/sec. In the rifle bullet sensitivity test 0% explosions, 60% partials and 40% combustions were observed for PA (Ref 48)... 

Rifle Bullet Sensitivity. Unaffected from the action of.. 30 cal bullets fired from a distance of 90 ft... 

Rifle Bullet Impact a) Unconfmed, no trials/unaffected 5/5 5/5 ... 

No explns were obtd in 15 shots each of 0.303 ball or AP ammo against targets consisting of 3 cu inch mild steel boxes with walls of 1/16 , 1/8" and 3/16 thickness contg NPN. Ref is 55% explns using eth nitrate as the Filler for this rifle bullet impact test... 

IPN gave a ERDE gap test (Scale III) of 16 cards at ambient temp. A value of over 27 cards is indicative of positive sensy to the rifle bullet test. Refs as to gap sensy include ethylene oxide (10 cards), Nitromethane (24 cards) and ethyl nitrate (43 cards)... 

Rifle bullet sensitivity. About 60% of trials affected by 0.30 cal bullet fired at 90 ft, vs 92% affected for Pentolite Shaped charge effectiveness. Steel cone, hole volume 130% TNT... 

Rifle bullet sensitivity. In 5 trials with 0.30 cal bullets fired at 90 ft, 20% expins, 60% burned, 20% unaffected, In 100 trials at -46°, all unaffected... 

Self-Test 1.6B Calculate the wavelength of a rifle bullet of mass 5.0 g traveling at i twice the speed of sound (the speed of sound is 331 m-s-1). 

Molecules in a gas are in constant motion at speeds on the order of the speed of a rifle bullet at equilibrium there is no net flow of gas and the motion is random. This motion produces collisions of the molecules with the walls of the vessel containing the gas, with a change in momentum of the gas molecule resulting from each collision. This change in momentum produces a force per unit area, or pressure on the wall. Consider those molecules with the component of velocity in the x direction between the value of vx and vx + dvx. The x direction is defined as the direction normal to the wall. The fraction of molecules with the x component of velocity in this range, denoted dN(vx)/N, is given by the density function, f(vx), where... 

C) Dunkle s Syllabus (1960-1961), p 13a (Stein found the rifle-bullet sensitivity of expls to increase with increasing thickness of confinement. For equivalent thickness, the expls were more bullet-sensitive in steel than in A1 bombs. As a quantitative test of deton of the expl, measurements by means of piezoelectric shock-velocity gages showed promise. When there was no firm indication... 

Bullet Impact Sensitiveness Test or Rifle Bullet Test. See Vol 1, p IX and in Vol 2, pp B332-B334 under Bullet Tests (See also Ref 55b for the test conducted at LASL)... 

Rifle Bullet Test. See Bullet Impact Sensitiveness Test... 

Lead Block and Copper Cylinder Compression Tests (113-15) Ballistic Pendulum Test (115-16) Fragmentation Test (Geschoss-Splitter Probe (118) Impact Test by Falling Weight (118-20) Deflagration Point (Verpuf-fungstemperatur) (120) Friction Test (120-21) Rifle Bullet Test (Beschussprobe) (121)... 

Power by Trauzl Test (142-45), by Compression Test (Ensayo por recalcado) (145-46) and by Ballistic. Pendulum (146) Fragmentation Test (148-49) Impact Test (Ensayo con un pilon) (150-53) Temperature of Deflagration (153) Friction Test (Ensayo de rozamiento) (153-54) Rifle Bullet Test (Ensayo de impacto) (154)... 

Anon, "Military Explosives , PATR 9-1910/TO 11A-1-34(1955) Sensitivity to Impact (pp 43-7) Sensitivity to Friction (47-9) Sensitivity to Frictional Impact, which includes Rifle Bullet Impact Test (49) Sensitivity to Heat and Spark, which includes Explosion Temperature Test (49-52) Sensitivity to Initiation by Sand Test (52-3 Fig 10 on p 54) Stability Determinations, which include 75°C International Test, 100°C Heat Test, Vacuum Stability Test, and Potassium Iodide-Starch (KI)... 

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