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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6.5x47 Lapua; 130 Berger VLD; IMR 8208 XBR results
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<blockquote data-quote="Alan Griffith" data-source="post: 383793" data-attributes="member: 4686"><p>Friday, I received my 8lb jug of IMR 8208 XBR. Yahoo! Tried to get out yesterday but family emergency precluded that; too bad as the wind was only about 3-4 mps. Today, I did even though the wind was much worse. Decided to shoot a pressure/ladder.</p><p></p><p>Surgeon 591 (smithed by Chris Matthews of Longshot rifles)</p><p>26" Krieger 1:8.5 MTU contour (600 round count). No one's yet explained to me what MTU stands for. </p><p>AICS 1.5 stock</p><p>NF 5.5-22x50mm w/ NP-R1</p><p>6.5x47 Lapua, original throat .104" now .146". No turn .294" neck.</p><p>130 Berger VLD Hunting, .010" into lands</p><p>CCI 450 primer</p><p>Redding Type-S FL w/ .289" bushing</p><p>Redding comp seater, seated to OAL 2.760"</p><p>Just completed my load development for 40.24 gr H4350, .010" into lands, CCI450, 2800 fps, ES 24, SD 9, .25 to .6 MOA.</p><p></p><p>Harris 6-9" swivel bipod</p><p>CED M2 chrono with center of screens @ 13.5' from muzzle, sun light from my 9pm. Shot between 11 am and 1 pm today.</p><p>65'F @ start, 77'F at finish</p><p>47.47 Baro</p><p>Wind, 3 to 15 mph, average 9mph from 11 am to 1 pm direction. </p><p>Sunny</p><p></p><p>I started off by shooting 5 sighters into a group @ 385 yds. 33.5 gr = 2597 fps AV - 11 ES - 3 SD. Four shots into 1.5" with 5th out to 3". That's .389 MOA or .78 MOA. Looks promising as far as accuracy and good ES/SD. At least for me. Oh, and I shoot off a portable fold-up picnic table so with the wind, the rifle was not still. One of my favorite spots is a sort of bowl where I can shoot in a near 180 deg direction so I can keep the wind pretty much between 11 and 1; in my face. </p><p></p><p>31 gr to 36 gr in .5 gr increments. Three shots each shot at 385 yds. Used my VIC 123 elec scale to keep powder charges to with in +/- .02 gr.</p><p></p><p>31 gr/ 2436 - 2435 - 2454 / ES = 19</p><p>31.5/ 2474 - 2462 - 2445 / ES = 29</p><p>32 gr/2496 - 2504 - 2498 / ES = 8</p><p>32.5 /2522 - 2528 - 2523 / ES = 6</p><p>33 gr/2534 - 2548 - 2536 / ES = 12</p><p>33.5 /2599 - 2612 - 2616 / ES = 17</p><p>34 gr/2632 - 2634 - 2626 / ES = 8</p><p>34.5 /2643 - 2648ej-2641shiny/ES = 7</p><p>35 gr/2649ej-2657shiny-2650ej/ES = 8</p><p>35.5/2728ej-3734ej -2728 / ES = 6</p><p>36 gr/2768ej & stiff - 2762ej - 2780/ES = 18</p><p></p><p>ej = ejector mark on brass</p><p>shinny = shinny smear on brass</p><p>stiff = stiff bolt lift</p><p></p><p>ES 335 fps</p><p></p><p>Really haven't had a chance to eval the target which was a 3" circle. I color coded each 3-shot group of bullets with perm marker; green, red, black, blue, then repeating the same four colors again. Works great because my Zeiss spotter @ 45x had too much vibration from the wind to tell all the impacts. Thanks Jason Baney! </p><p></p><p>I'll try and post pics later.</p><p></p><p>For now, I'm impressed with the accuracy potential, ES and SD but not the velocity. I saw a post here on Snipershide where someone witnessed a chrono printout of something around 3000 fps. Must have been a looooong barrel and loooots of pressure.</p><p></p><p>Alan</p></blockquote><p></p>
[QUOTE="Alan Griffith, post: 383793, member: 4686"] Friday, I received my 8lb jug of IMR 8208 XBR. Yahoo! Tried to get out yesterday but family emergency precluded that; too bad as the wind was only about 3-4 mps. Today, I did even though the wind was much worse. Decided to shoot a pressure/ladder. Surgeon 591 (smithed by Chris Matthews of Longshot rifles) 26" Krieger 1:8.5 MTU contour (600 round count). No one's yet explained to me what MTU stands for. AICS 1.5 stock NF 5.5-22x50mm w/ NP-R1 6.5x47 Lapua, original throat .104" now .146". No turn .294" neck. 130 Berger VLD Hunting, .010" into lands CCI 450 primer Redding Type-S FL w/ .289" bushing Redding comp seater, seated to OAL 2.760" Just completed my load development for 40.24 gr H4350, .010" into lands, CCI450, 2800 fps, ES 24, SD 9, .25 to .6 MOA. Harris 6-9" swivel bipod CED M2 chrono with center of screens @ 13.5' from muzzle, sun light from my 9pm. Shot between 11 am and 1 pm today. 65'F @ start, 77'F at finish 47.47 Baro Wind, 3 to 15 mph, average 9mph from 11 am to 1 pm direction. Sunny I started off by shooting 5 sighters into a group @ 385 yds. 33.5 gr = 2597 fps AV - 11 ES - 3 SD. Four shots into 1.5" with 5th out to 3". That's .389 MOA or .78 MOA. Looks promising as far as accuracy and good ES/SD. At least for me. Oh, and I shoot off a portable fold-up picnic table so with the wind, the rifle was not still. One of my favorite spots is a sort of bowl where I can shoot in a near 180 deg direction so I can keep the wind pretty much between 11 and 1; in my face. 31 gr to 36 gr in .5 gr increments. Three shots each shot at 385 yds. Used my VIC 123 elec scale to keep powder charges to with in +/- .02 gr. 31 gr/ 2436 - 2435 - 2454 / ES = 19 31.5/ 2474 - 2462 - 2445 / ES = 29 32 gr/2496 - 2504 - 2498 / ES = 8 32.5 /2522 - 2528 - 2523 / ES = 6 33 gr/2534 - 2548 - 2536 / ES = 12 33.5 /2599 - 2612 - 2616 / ES = 17 34 gr/2632 - 2634 - 2626 / ES = 8 34.5 /2643 - 2648ej-2641shiny/ES = 7 35 gr/2649ej-2657shiny-2650ej/ES = 8 35.5/2728ej-3734ej -2728 / ES = 6 36 gr/2768ej & stiff - 2762ej - 2780/ES = 18 ej = ejector mark on brass shinny = shinny smear on brass stiff = stiff bolt lift ES 335 fps Really haven't had a chance to eval the target which was a 3" circle. I color coded each 3-shot group of bullets with perm marker; green, red, black, blue, then repeating the same four colors again. Works great because my Zeiss spotter @ 45x had too much vibration from the wind to tell all the impacts. Thanks Jason Baney! I'll try and post pics later. For now, I'm impressed with the accuracy potential, ES and SD but not the velocity. I saw a post here on Snipershide where someone witnessed a chrono printout of something around 3000 fps. Must have been a looooong barrel and loooots of pressure. Alan [/QUOTE]
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6.5x47 Lapua; 130 Berger VLD; IMR 8208 XBR results
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