Heat Shrink Tubing as an alternative to pressure-molded sabots?...
Heat Shrink Tubing, Heat Shrinkable Tubing, Heat Shrink Tube, Heat Shrink Sleeve - HeatShrinkTubingDirect.com: "If you're looking for a particular type of shrink tubing that you don't see on our site, or need additional information about any heat shrink sleeve product available in our current inventory, just give us a call and our highly trained heat shrink tubing professionals will be happy to assist you! We're always just a phone call or email away!"
Monday, June 14, 2010
1-1-Data.pdf (application/pdf Object)
1-1-Data.pdf (application/pdf Object)
Load data from another version of the previous article.
http://www.gun-tests.com/performance/apr96reloading.html
Load data from another version of the previous article.
http://www.gun-tests.com/performance/apr96reloading.html
Untitled Document
Untitled Document: "Handloading .22 WMR ammo is economical, simple, and offers gains in performance and accuracy over factory ammo."
...
The Right Shell Holder The first step is getting a shell holder that will hold the .22 WMR case. You can make one by modifying a .25 ACP shell holder by chucking an empty .22 WMR case in an electric drill and coating the rim with grinding compound. While the case is spinning, push the .25 ACP shell holder over the rim so the grinding compound will relieve the slot in the holder for the rim.
...
...
The Right Shell Holder The first step is getting a shell holder that will hold the .22 WMR case. You can make one by modifying a .25 ACP shell holder by chucking an empty .22 WMR case in an electric drill and coating the rim with grinding compound. While the case is spinning, push the .25 ACP shell holder over the rim so the grinding compound will relieve the slot in the holder for the rim.
...
Saturday, June 12, 2010
Thursday, June 10, 2010
IMR Trail Boss for reduced loads (Pistol and Rifle)
IMR Trail Boss for reduced loads (Pistol and Rifle): "This is for you experienced reloaders, and before you tell me that it's unsafe to do this, please read the following PDF file right off Hodgdon's website. Don't try this with any other powder than IMR's Trail Boss though as TB's the only powder in the world that you can safely do this kind of load development with.
http://hodgdon.com/PDF/Trail-Boss-data.pdf
Trail Boss is a unique powder that was developed originally for the Cowboy Action shooters to produce light, low recoil handgun loads with lead bullets. Some guys started experimenting with it in reduced loads for rifles both with cast lead AND jacketed bullets.
Hodgdon (who now owns IMR) also began experimenting with it and came up with the info in that PDF file."
...
http://hodgdon.com/PDF/Trail-Boss-data.pdf
Trail Boss is a unique powder that was developed originally for the Cowboy Action shooters to produce light, low recoil handgun loads with lead bullets. Some guys started experimenting with it in reduced loads for rifles both with cast lead AND jacketed bullets.
Hodgdon (who now owns IMR) also began experimenting with it and came up with the info in that PDF file."
...
Bullet (not cartridge) overall lengths
Bullet (not cartridge) overall lengths: "A few others for your list:
Norma 197.5g .322' FJ BT 1.340'
SinterFire SF308-125NTP (w/can) 1.160'
SinterFire SF224-42WTP 0.740'
SinterFire SF762x39-123NTP 1.09'
SinterFire 38 Super .356' 121g 0.79'
Hornady .310' 123g SP #3140 0.85'
Hornady .355' 147g BTHP/XTP #35580 0.65'
Hornady 44 Cal 240g HP #4420 0.705'
Hornady 44 Cal 240g HP/XTP #44200 0.70'
Speer 308 Plinker 100g 0.625'
Speer 308 HP 110g 0.625'
Speer .429' TMJ 240g #4459 0.745'
Lyman 45 LC CAB 250 LRNFP 0.64'
Lyman #311008 0.64'
Lyman #311410 0.82'
Lyman #358429 0.74'
Lyman #429421 0.77'
Lyman #429360 0.72'
NEI #148358 0.652'
RCBS 308-165-SIL w/GC 1.00'
Saeco 68BB 0.64'"
Norma 197.5g .322' FJ BT 1.340'
SinterFire SF308-125NTP (w/can) 1.160'
SinterFire SF224-42WTP 0.740'
SinterFire SF762x39-123NTP 1.09'
SinterFire 38 Super .356' 121g 0.79'
Hornady .310' 123g SP #3140 0.85'
Hornady .355' 147g BTHP/XTP #35580 0.65'
Hornady 44 Cal 240g HP #4420 0.705'
Hornady 44 Cal 240g HP/XTP #44200 0.70'
Speer 308 Plinker 100g 0.625'
Speer 308 HP 110g 0.625'
Speer .429' TMJ 240g #4459 0.745'
Lyman 45 LC CAB 250 LRNFP 0.64'
Lyman #311008 0.64'
Lyman #311410 0.82'
Lyman #358429 0.74'
Lyman #429421 0.77'
Lyman #429360 0.72'
NEI #148358 0.652'
RCBS 308-165-SIL w/GC 1.00'
Saeco 68BB 0.64'"
Sunday, June 06, 2010
Dynamic Research Technologies - lead free frangible ammunition in time proven calibers
Dynamic Research Technologies - lead free frangible ammunition in time proven calibers: "At DRT™ we are proud to introduce to you a revolutionary lead- free, highly accurate, frangible ammunition. Our ammunition has been used by special Government agencies for over ten years and it is now available to determined hunters.
DRT™ lead-free centerfire ammunition is designed to out-perform all other ammunition and it is environmentally friendly!"
DRT™ lead-free centerfire ammunition is designed to out-perform all other ammunition and it is environmentally friendly!"
308 Winchester Pages 260 to 262.pdf (application/pdf Object)
308 Winchester Pages 260 to 262.pdf (application/pdf Object)
http://www.accuratepowder.com/data/PerCaliber2Guide/Rifle/Standarddata%28Rifle%29/308Cal%287.82mm%29/308%20Winchester%20Pages%20260%20to%20262.pdf
Sabot data at the very end.
http://www.accuratepowder.com/data/PerCaliber2Guide/Rifle/Standarddata%28Rifle%29/308Cal%287.82mm%29/308%20Winchester%20Pages%20260%20to%20262.pdf
Sabot data at the very end.
.308 Winchester
.308 Winchester: "Sizes a .22 caliber bullet into a .308 Winchester casing
The most exciting feature of our sabots is the uniform 'flowering' which occurs immediately as the bullet exits the muzzle. The design is intended to allow the user to maintain excellent group shooting. For successful group shooting it is recommended that any previously fired barrel be cleaned prior to shooting sabot rounds as the residue will foul the accuracy of the sabot."
The most exciting feature of our sabots is the uniform 'flowering' which occurs immediately as the bullet exits the muzzle. The design is intended to allow the user to maintain excellent group shooting. For successful group shooting it is recommended that any previously fired barrel be cleaned prior to shooting sabot rounds as the residue will foul the accuracy of the sabot."
Search results for: 'FN5-7'
Search results for: 'FN5-7'
eHobbyAsia appears to have the largest supply of airsoft accessories for the TM FN5-7
eHobbyAsia appears to have the largest supply of airsoft accessories for the TM FN5-7
1 Stop Tactical Gear - Blackheart International LLC - Training Manuals/Books
1 Stop Tactical Gear - Blackheart International LLC - Training Manuals/Books
BHI's ads say that their handbook on the FsN is "coming soon"
BHI's ads say that their handbook on the FsN is "coming soon"
KTOG Forum - PMR-30
KTOG Forum - PMR-30: "The PMR-30 is a light weight, full sized pistol chambered for the flat shooting 22 magnum cartridge (.22WMR). It operates on a unique hybrid blow-back/locked-breech system allowing use of a wide variety of ammunition as it seamlessly adjusts between locked-breech and blow-back operation, depending on the pressure of the cartridge. The double-stack magazine holds 30 rounds and fits completely inside the grip. The crisp, single action trigger has an over-travel stop. The manual safety is a thumb activated ambidextrous lever. The slide locks back after the last shot and a manual slide lock lever is also provided. The light, crisp trigger pull and fiber optic sights make this pistol ideal for target shooting and small game. The PMR-30 is scheduled for release in the Spring of 2010."
Comparative Powder Burning Rates
Comparative Powder Burning Rates: "Temperature Effects on Powder
Effect Of Temperature On Various Powders
(0F) (70F) (125F) Changes
Powder Pressure
(kpsi) Velocity
(f/s) Pressure
(kpsi) Velocity
(f/s) Pressure
(kpsi) Velocity
(f/s) D P
Cold D V
Cold D P
Hot D V
Hot
Accurate 2520 50.5 2781 49.9 2805 52.6 2844 600 -24 2700 39
IMR 4064 51.3 2651 51.1 2686 49.7 2697 200 -35 -1400 11
Reloader 15 48.7 2665 50.3 2715 47.3 2705 -2100 -50 -3000 -10
Win 748 47.3 2655 50.2 2724 51.1 2769 -2900 -69 900 45
Varget 51.2 2778 51.1 2771 51.5 2779 100 7 -440 8
Vit N140 47.5 2629 49.6 2665 51.0 2679 -2100 -36 1400 14
Vit N555 48.8 2778 50.1 2808 51.5 2834 -1300 -30 1400 26
Data based upon the 308 Win. cartridge using all the same lot number Winchester cases, Winchester Large Rifle Primers and Sierra 168 gr. BTHP Match bullets. Note that many ball powders can exhibit unexpected extreme changes in pressure below 35 degrees F and above 105 degrees F, rising pressures 10,000 psi or more at elevated temperatures. Be careful at the temperature extremes! In addition do not use ball powders at very low load densities."
Effect Of Temperature On Various Powders
(0F) (70F) (125F) Changes
Powder Pressure
(kpsi) Velocity
(f/s) Pressure
(kpsi) Velocity
(f/s) Pressure
(kpsi) Velocity
(f/s) D P
Cold D V
Cold D P
Hot D V
Hot
Accurate 2520 50.5 2781 49.9 2805 52.6 2844 600 -24 2700 39
IMR 4064 51.3 2651 51.1 2686 49.7 2697 200 -35 -1400 11
Reloader 15 48.7 2665 50.3 2715 47.3 2705 -2100 -50 -3000 -10
Win 748 47.3 2655 50.2 2724 51.1 2769 -2900 -69 900 45
Varget 51.2 2778 51.1 2771 51.5 2779 100 7 -440 8
Vit N140 47.5 2629 49.6 2665 51.0 2679 -2100 -36 1400 14
Vit N555 48.8 2778 50.1 2808 51.5 2834 -1300 -30 1400 26
Data based upon the 308 Win. cartridge using all the same lot number Winchester cases, Winchester Large Rifle Primers and Sierra 168 gr. BTHP Match bullets. Note that many ball powders can exhibit unexpected extreme changes in pressure below 35 degrees F and above 105 degrees F, rising pressures 10,000 psi or more at elevated temperatures. Be careful at the temperature extremes! In addition do not use ball powders at very low load densities."
DRT TerminalShock™ .224 dia 79gr Bullet 50 pcs
DRT TerminalShock™ .224 dia 79gr Bullet 50 pcs: "DRT TerminalShock™ .224 dia 79gr Bullet 50 pcs
unavailable
Price: $22.50
In stock
Item Number: 62201
Manufacturer Item No: 62201
Quantity:
* Whole number only
At DRT™ we are proud to introduce to you our revolutionary lead free frangible bullets. DRT bullets are design to out-perform all others in both accuracy and especially terminal performance. The bullets will both penetrate deeply and still fragment, causing massive wound cavities, bringing that trophy down quickly and humanely.
Recommended for use in 1:7-1:9 twist rate. BC - .370 (G1 scale).
Note: Make sure to clear all hollowpoints from debris in order for the bullets to perform as advertised."
unavailable
Price: $22.50
In stock
Item Number: 62201
Manufacturer Item No: 62201
Quantity:
* Whole number only
At DRT™ we are proud to introduce to you our revolutionary lead free frangible bullets. DRT bullets are design to out-perform all others in both accuracy and especially terminal performance. The bullets will both penetrate deeply and still fragment, causing massive wound cavities, bringing that trophy down quickly and humanely.
Recommended for use in 1:7-1:9 twist rate. BC - .370 (G1 scale).
Note: Make sure to clear all hollowpoints from debris in order for the bullets to perform as advertised."
Ballistic coefficients of centerfire bullets.
Ballistic coefficients of centerfire bullets.: "Ballistic coefficient of centerfire bullets."
[nice table]
[nice table]
Develop Subsonic
Develop Subsonic: "The goal of this article is to explain techniques used to safely develop and load subsonic ammunition without risking life and limb.
The ultimate danger in subsonic loading is a phenomenon known as Secondary Explosive Effect (SEE). SEE can destroy the strongest rifle action and it can happen on the first shot or the tenth. In fact it is more likely to happen after the bore is dirty from the first few shots. SEE is the result of slow or incomplete ignition of small amounts of smokeless powder. The powder smolders and releases explosive gases which, when finally ignited, detonate in a high order explosion. The warning sign for imminent SEE is a hangfire or delayed ignition."
...
The ultimate danger in subsonic loading is a phenomenon known as Secondary Explosive Effect (SEE). SEE can destroy the strongest rifle action and it can happen on the first shot or the tenth. In fact it is more likely to happen after the bore is dirty from the first few shots. SEE is the result of slow or incomplete ignition of small amounts of smokeless powder. The powder smolders and releases explosive gases which, when finally ignited, detonate in a high order explosion. The warning sign for imminent SEE is a hangfire or delayed ignition."
...
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