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Rifles, Reloading, Optics, Equipment
Reloading
.308 175 SMK over Varget
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<blockquote data-quote="tdavis757" data-source="post: 1078828" data-attributes="member: 88774"><p>Hello all,</p><p></p><p>I am working through my first run ladder test and have come across a few obstacles. I ran 0.4 grain and then 0.3 grain increment ladder tests and narrowed the grouping tests to 43.9-44.5 grains. After shooting five shot groups I decided on 44.5 grains. </p><p></p><p>I was loading touching the lands at 2.2875 to the ogive during the tests. </p><p></p><p>Now that I settled on 44.5 grains I began working in seating depths from touching and working back 0.005 for five shot groupings. Now here's where I'm scratching my head...</p><p></p><p>As I backed off the lands I saw an increase in velocity (15 fps) with improvements in SD (6.5 at 0.02 jump). Is this normal?</p><p></p><p>Second question, I am getting an average velocity of 2715 fps out of a 22 inch barrel on 10 shot string (chrono was ~10 from muzzle). Generally speaking would you say this is a little hot out of a 22 inch barrel? </p><p></p><p>I appreciate any feedback or suggestions from you all.</p></blockquote><p></p>
[QUOTE="tdavis757, post: 1078828, member: 88774"] Hello all, I am working through my first run ladder test and have come across a few obstacles. I ran 0.4 grain and then 0.3 grain increment ladder tests and narrowed the grouping tests to 43.9-44.5 grains. After shooting five shot groups I decided on 44.5 grains. I was loading touching the lands at 2.2875 to the ogive during the tests. Now that I settled on 44.5 grains I began working in seating depths from touching and working back 0.005 for five shot groupings. Now here's where I'm scratching my head... As I backed off the lands I saw an increase in velocity (15 fps) with improvements in SD (6.5 at 0.02 jump). Is this normal? Second question, I am getting an average velocity of 2715 fps out of a 22 inch barrel on 10 shot string (chrono was ~10 from muzzle). Generally speaking would you say this is a little hot out of a 22 inch barrel? I appreciate any feedback or suggestions from you all. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
.308 175 SMK over Varget
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