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Rifles, Reloading, Optics, Equipment
Reloading
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<blockquote data-quote="memtb" data-source="post: 2850530" data-attributes="member: 75451"><p>When I was developing a load (around 1987) for my old .375 H&H using Hornady 270 grain SP's….. I had some (quite) old Hornady data using WW 760 powder that was a full 4 grains less than the old Hornady data.</p><p></p><p> Increasing my loads 1/2 grain every 5 shots, the groups shrank with each increase! By the time I reached the listed Hornady maximum with 35 rounds already fired that evening, with the sun on the horizon …..my first 4 rounds went just under 1/2". The 5th shot, like all of the 5th shots before it, was about an inch out of the group.</p><p></p><p> I blame losing the 5th shot on hurrying and not allowing time for sufficient barrel cooling. It certainly couldn't have been the shooter! <img class="smilie smilie--emoji" loading="lazy" alt="😉" title="Winking face :wink:" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f609.png" data-shortname=":wink:" /> <img class="smilie smilie--emoji" loading="lazy" alt="😂" title="Face with tears of joy :joy:" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f602.png" data-shortname=":joy:" /> memtb</p><p></p><p></p><p> Oh……no indications of high pressures at that load! Another …..</p><p>I stopped there, I suspected it wasn't gonna get any better! <img class="smilie smilie--emoji" loading="lazy" alt="😁" title="Beaming face with smiling eyes :grin:" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f601.png" data-shortname=":grin:" /></p></blockquote><p></p>
[QUOTE="memtb, post: 2850530, member: 75451"] When I was developing a load (around 1987) for my old .375 H&H using Hornady 270 grain SP’s….. I had some (quite) old Hornady data using WW 760 powder that was a full 4 grains less than the old Hornady data. Increasing my loads 1/2 grain every 5 shots, the groups shrank with each increase! By the time I reached the listed Hornady maximum with 35 rounds already fired that evening, with the sun on the horizon …..my first 4 rounds went just under 1/2”. The 5th shot, like all of the 5th shots before it, was about an inch out of the group. I blame losing the 5th shot on hurrying and not allowing time for sufficient barrel cooling. It certainly couldn’t have been the shooter! 😉 😂 memtb Oh……no indications of high pressures at that load! Another ….. I stopped there, I suspected it wasn’t gonna get any better! 😁 [/QUOTE]
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