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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
NEW 7 SHERMAN SHORT TACTICAL (SST)
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<blockquote data-quote="SteelBanger" data-source="post: 2134492" data-attributes="member: 112192"><p>Well, about 8 months after I originally planned to shoot this thing it finally all came together yesterday! I was able to get out and shoot at 100y and ended up putting 29 rounds down the tube. I started with 10 rounds with 58gr of H1000 to go through a break in / cleaning routine, then shot a low end ladder with H1000 and another low end ladder with RL26. I was hoping to find a decent node in the low end of the range to use when fire-forming the rest of my 200 cases. All of these rounds were just into the lands - something recommended by my smith when fire-forming. </p><p></p><p>Here's the 9 round ladder of H1000. You might notice I'm missing the 58.8 charge, that's because I got ahead of myself and chambered that round right after the previous shot instead giving the chamber a minute to cool down and when I tried to pull it out the bullet stuck in the lands and spilled the powder everywhere. <img class="smilie smilie--emoji" loading="lazy" alt="😑" title="Expressionless face :expressionless:" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f611.png" data-shortname=":expressionless:" /> Overall though the rifle shot lights out with H1000. Shots 1 and 2 were right after my final cleaning cycle so if you consider those fouling shots I couldn't ask for better grouping ... with .2 gr increments no less! I think i'll load up some more at 59.7 and continue fire-forming and see how those do.</p><p></p><p>[ATTACH=full]256479[/ATTACH]</p><p></p><p>Here's the 10 shot ladder of RL26, not as nice of a grouping but that's not important with a ladder. Shots 7,8, and 9 have the best vertical dispersion and also look good on the velocity spread so I may do a .1gr ladder from 56.2 - 56.6 and see what that gets me, or just pick somewhere in the middle and load em up and see what I get. </p><p></p><p>[ATTACH=full]256481[/ATTACH]</p><p></p><p>Ultimately I want to get these 180's up to 2,900+ so we'll see how that looks once I get through fire-forming ... but I'm not sure I see myself being patient enough to fire-form all 200 before trying to crank the velocity up!</p></blockquote><p></p>
[QUOTE="SteelBanger, post: 2134492, member: 112192"] Well, about 8 months after I originally planned to shoot this thing it finally all came together yesterday! I was able to get out and shoot at 100y and ended up putting 29 rounds down the tube. I started with 10 rounds with 58gr of H1000 to go through a break in / cleaning routine, then shot a low end ladder with H1000 and another low end ladder with RL26. I was hoping to find a decent node in the low end of the range to use when fire-forming the rest of my 200 cases. All of these rounds were just into the lands - something recommended by my smith when fire-forming. Here's the 9 round ladder of H1000. You might notice I'm missing the 58.8 charge, that's because I got ahead of myself and chambered that round right after the previous shot instead giving the chamber a minute to cool down and when I tried to pull it out the bullet stuck in the lands and spilled the powder everywhere. 😑 Overall though the rifle shot lights out with H1000. Shots 1 and 2 were right after my final cleaning cycle so if you consider those fouling shots I couldn't ask for better grouping ... with .2 gr increments no less! I think i'll load up some more at 59.7 and continue fire-forming and see how those do. [ATTACH type="full"]256479[/ATTACH] Here's the 10 shot ladder of RL26, not as nice of a grouping but that's not important with a ladder. Shots 7,8, and 9 have the best vertical dispersion and also look good on the velocity spread so I may do a .1gr ladder from 56.2 - 56.6 and see what that gets me, or just pick somewhere in the middle and load em up and see what I get. [ATTACH type="full"]256481[/ATTACH] Ultimately I want to get these 180's up to 2,900+ so we'll see how that looks once I get through fire-forming ... but I'm not sure I see myself being patient enough to fire-form all 200 before trying to crank the velocity up! [/QUOTE]
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NEW 7 SHERMAN SHORT TACTICAL (SST)
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