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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Velocity Question?
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<blockquote data-quote="Autorotate19" data-source="post: 513111" data-attributes="member: 20956"><p>Okay thanks for all the help but here is what I got. I have a brand new custom brux 26" barrel on a surgeon action, bedded in a grey bull stock. The first day I started out with retumbo working 55grs up to max, lapua brass cci mag primers, 140gr berger vlds 2 thousands off the lands shooting through a chrono. It was about 60 degrees and cloudy with chrono 15' from muzzle. </p><p></p><p>55gr- 2,864, 2,799, 2,805</p><p></p><p>56gr- 2,867, 2,900, 2,836, 2,903, 2,875</p><p></p><p>56.5gr- 2,921, 2,893, 2,897, 2,898,2,905</p><p></p><p>57gr- 2,948, 2,939, 2,900, 2,902, 2,898.</p><p></p><p>Nearly all loads were under an inch at 100 yards, I waited a minute or two between each shot. In fact 56gr went into one ragged hole. </p><p></p><p>Since I wasnt getting very consistent velocity I switched to H4350 the next day. </p><p>Groups opened up to around 1.5" to under 1" with some.</p><p></p><p>46.5gr- 2,808, 2769, 2,770</p><p></p><p>47.5gr- 2,844, 2,839, 2,860, 2,878, 2,939</p><p></p><p>48.5gr- 2,914, 2,915, 2,911, 2,945, 2,920</p><p></p><p>49.0gr- 2,890, 2,898, with pressure signs so I quit. </p><p></p><p>I guess Im kinda lost what do you guys think I should do next? Play with seating depth, change primers, I noticed noone uses mag primers. This is the first time I have thrown a chrono in the mix and its added a whole new variable. What do you guys think?</p></blockquote><p></p>
[QUOTE="Autorotate19, post: 513111, member: 20956"] Okay thanks for all the help but here is what I got. I have a brand new custom brux 26" barrel on a surgeon action, bedded in a grey bull stock. The first day I started out with retumbo working 55grs up to max, lapua brass cci mag primers, 140gr berger vlds 2 thousands off the lands shooting through a chrono. It was about 60 degrees and cloudy with chrono 15' from muzzle. 55gr- 2,864, 2,799, 2,805 56gr- 2,867, 2,900, 2,836, 2,903, 2,875 56.5gr- 2,921, 2,893, 2,897, 2,898,2,905 57gr- 2,948, 2,939, 2,900, 2,902, 2,898. Nearly all loads were under an inch at 100 yards, I waited a minute or two between each shot. In fact 56gr went into one ragged hole. Since I wasnt getting very consistent velocity I switched to H4350 the next day. Groups opened up to around 1.5" to under 1" with some. 46.5gr- 2,808, 2769, 2,770 47.5gr- 2,844, 2,839, 2,860, 2,878, 2,939 48.5gr- 2,914, 2,915, 2,911, 2,945, 2,920 49.0gr- 2,890, 2,898, with pressure signs so I quit. I guess Im kinda lost what do you guys think I should do next? Play with seating depth, change primers, I noticed noone uses mag primers. This is the first time I have thrown a chrono in the mix and its added a whole new variable. What do you guys think? [/QUOTE]
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