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Rifles, Reloading, Optics, Equipment
Reloading
Lazzeroni Warbird
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<blockquote data-quote="Swamplord" data-source="post: 754675" data-attributes="member: 2460"><p>Boman, </p><p></p><p>I have used moly in the past but these loads were developed with Tungsten Disulfide which is a vastly superior product.. I would definately start low and work up with moly as it behaves differently than tungsten.. </p><p></p><p>In my experience it has dramatically improved accuracy and barrel life in my rifles. the Warbird's throat life expectancy was placed at 800 rnds, I have exceeded that by 500 rnds with no loss in accuracy, I use a bore prep made with the same tungsten powder to coat the bore with a few passes then a dry mop to remove the excess material, the hot gasses are deflected by the tungsten coating and pass through the bore with less impact on the throat and rifling . I will add info on the stuff in my next post !</p><p>--------------------------------------------------------------------------------</p><p></p><p>180 Gr Swift A-Frame coated with tungsten disulfide</p><p>105 gr. Alliants Reloder 25 </p><p>3474 FPS 20 ft from the muzzle</p><p>3.584" Cartridge OAL</p><p>3.015" Ogive OAL</p><p></p><p> load tailored specifically for my rifle in that barrel... your results may vary</p><p>also powder used came from 4 5lb jugs of same lot "April 21,2001 S2 LOT 25029"</p><p>powder may have a different burn rate from newly manufactured lots as was seen with Hodgdons H-1000.... all data was derived by live fire with temperatures ranging from 55-65 degree Fahrenheit , my hunting conditions were in same temps maybe a bit lower...</p><p>RL 25 is known to be temperature sensitive, in high temp areas use extreme caution with max loads.... several more reasons to start low and work up....</p><p></p><p>my go to load that I used for all my hunting in Alaska (in Brown Bear country) with the Warbird, I worked up a load with uncoated 180 gr Swift A-Frame bullets during barrel break in using RL-25 (load data from Lazz website) accuracy was around 1" at 100 yards...</p><p></p><p> When I started using tungsten coated bullets velocity dropped off indicating lower pressure, I gradually worked up to 3600 fps and came across high pressure signs and accuracy fell off, backing down to my best accuracy load , 1/2" 3 shot groups at 100 yards, all shots were fired with bbl cooling intervals of at least 10 mins. without disturbing/ moving the rifle from my shooting bags, ( line of sight/ bullet path remained the same) which I found is crucial for shooting for groups and determining your loads accuracy, I often see guys at the range pulling their guns off to shoot with another rifle or a buddy wants to shoot his rifle, I go alone for accurate load development. </p><p></p><p>always shoot through a chronograph when developing top end loads, your velocity is usually the first indication of high pressure,</p><p> With the Sako TRGS M995 and it's 26" barrel, anytime a 180 gr uncoated bullet is at 3300 fps or more, start watching for signs of pressure on your fired brass. some bullets will create high pressures with a 1/2 grain increment of powder without any warning with the previous lower charge...</p><p></p><p>another critical step for accuracy----my brass prep involved sorting 200 pcs of brass by weight after the primer pockets were uniformed, flash hole deburred, full length sized in a 7.82 Warbird Redding FL die then trimmed all pcs of brass to same length.... basically follow the bench rest shooters techniques of preparing brass for a competitive shoot.... it does work ! the goal here is uniformity in ammunition, identical loads will produce better accuracy . </p><p></p><p>My brother has an identical rifle bought at the same time, he had a muzzle brake installed by Wild West Guns from Anchorage which shortened his bbl by about an inch but his rifle reached higher pressures with lower charges using the same lot of bullets and powder..</p><p>Accuracy of 1/2" at 100 yards was found with 1 gr less powder and similar velocity</p><p>104.0 gr RL 25</p><p>3.581" Cartridge OAL</p><p>3.012" Ogive OAL</p><p></p><p>I apologize for such a long winded post, just wanted to share with you my results with my loading methods for the Warbird....</p><p></p><p>let me know how it works out, really curious about the brass made by Hornady ! I believe the stuff I have was made by Mast...</p></blockquote><p></p>
[QUOTE="Swamplord, post: 754675, member: 2460"] Boman, I have used moly in the past but these loads were developed with Tungsten Disulfide which is a vastly superior product.. I would definately start low and work up with moly as it behaves differently than tungsten.. In my experience it has dramatically improved accuracy and barrel life in my rifles. the Warbird's throat life expectancy was placed at 800 rnds, I have exceeded that by 500 rnds with no loss in accuracy, I use a bore prep made with the same tungsten powder to coat the bore with a few passes then a dry mop to remove the excess material, the hot gasses are deflected by the tungsten coating and pass through the bore with less impact on the throat and rifling . I will add info on the stuff in my next post ! -------------------------------------------------------------------------------- 180 Gr Swift A-Frame coated with tungsten disulfide 105 gr. Alliants Reloder 25 3474 FPS 20 ft from the muzzle 3.584" Cartridge OAL 3.015" Ogive OAL load tailored specifically for my rifle in that barrel... your results may vary also powder used came from 4 5lb jugs of same lot "April 21,2001 S2 LOT 25029" powder may have a different burn rate from newly manufactured lots as was seen with Hodgdons H-1000.... all data was derived by live fire with temperatures ranging from 55-65 degree Fahrenheit , my hunting conditions were in same temps maybe a bit lower... RL 25 is known to be temperature sensitive, in high temp areas use extreme caution with max loads.... several more reasons to start low and work up.... my go to load that I used for all my hunting in Alaska (in Brown Bear country) with the Warbird, I worked up a load with uncoated 180 gr Swift A-Frame bullets during barrel break in using RL-25 (load data from Lazz website) accuracy was around 1" at 100 yards... When I started using tungsten coated bullets velocity dropped off indicating lower pressure, I gradually worked up to 3600 fps and came across high pressure signs and accuracy fell off, backing down to my best accuracy load , 1/2" 3 shot groups at 100 yards, all shots were fired with bbl cooling intervals of at least 10 mins. without disturbing/ moving the rifle from my shooting bags, ( line of sight/ bullet path remained the same) which I found is crucial for shooting for groups and determining your loads accuracy, I often see guys at the range pulling their guns off to shoot with another rifle or a buddy wants to shoot his rifle, I go alone for accurate load development. always shoot through a chronograph when developing top end loads, your velocity is usually the first indication of high pressure, With the Sako TRGS M995 and it's 26" barrel, anytime a 180 gr uncoated bullet is at 3300 fps or more, start watching for signs of pressure on your fired brass. some bullets will create high pressures with a 1/2 grain increment of powder without any warning with the previous lower charge... another critical step for accuracy----my brass prep involved sorting 200 pcs of brass by weight after the primer pockets were uniformed, flash hole deburred, full length sized in a 7.82 Warbird Redding FL die then trimmed all pcs of brass to same length.... basically follow the bench rest shooters techniques of preparing brass for a competitive shoot.... it does work ! the goal here is uniformity in ammunition, identical loads will produce better accuracy . My brother has an identical rifle bought at the same time, he had a muzzle brake installed by Wild West Guns from Anchorage which shortened his bbl by about an inch but his rifle reached higher pressures with lower charges using the same lot of bullets and powder.. Accuracy of 1/2" at 100 yards was found with 1 gr less powder and similar velocity 104.0 gr RL 25 3.581" Cartridge OAL 3.012" Ogive OAL I apologize for such a long winded post, just wanted to share with you my results with my loading methods for the Warbird.... let me know how it works out, really curious about the brass made by Hornady ! I believe the stuff I have was made by Mast... [/QUOTE]
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