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Rifles, Reloading, Optics, Equipment
Reloading
reduced velocity loads
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<blockquote data-quote="royinidaho" data-source="post: 165914" data-attributes="member: 2011"><p>Dave,</p><p></p><p>You seem to be out on a limb on this one.<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink ;)" loading="lazy" data-shortname=";)" /></p><p></p><p>With a chrono and some messing around you can get there. After seeing someone else's experience with reduced loads of 4861 in a 243 I get a little queezy with the first shot but seemed to have survived so far.<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite11" alt=":rolleyes:" title="Roll Eyes :rolleyes:" loading="lazy" data-shortname=":rolleyes:" /></p><p></p><p>I haven't messed with the 338 yet but will do so one of these times.</p><p></p><p>Here are some links:</p><p></p><p><a href="http://www.handloads.com/calc/reduced.asp" target="_blank">Reduced Load Calculator</a></p><p></p><p>This could be a bit risky if double charged....</p><p><a href="http://www.reloadingroom.com/page33.html" target="_blank">Blue Dot Loads</a></p><p></p><p>Here's my approach:</p><p>Hogdon lists IMR 4350 and the 250gr bullet data.</p><p>83 gr = 2820 FPS</p><p>78 gr = 2698 FPS</p><p></p><p>Thus 5gr pwdr reduction = 122 FPS velocity reduction.</p><p>Or about 24 FPS /grain of powder</p><p>Then 2968 - 2000 = 968 FPS desired velocity drop;</p><p>968 FPS/24FPS/gr = 40.3 grains of 4350 to get 2000 FPS.</p><p></p><p>As is the usual warning: Sneak <strong><span style="color: Blue">DOWN </span></strong><span style="color: Blue"><span style="color: Black">on it a couple of grains at a time and stop "just before" something bad happens.<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite11" alt=":rolleyes:" title="Roll Eyes :rolleyes:" loading="lazy" data-shortname=":rolleyes:" /></span></span></p><p><span style="color: Blue"><span style="color: Black"></span></span></p><p><span style="color: Blue"><span style="color: Black">If nothing else, this response may well gather the attention of someone who really knows what they're doing and flame my little butt.<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" /> But hey, I've been thinking about getting my butt 'waxed' any way.<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite9" alt=":eek:" title="Eek! :eek:" loading="lazy" data-shortname=":eek:" /></span></span></p><p><span style="color: Blue"><span style="color: Black"></span></span></p><p><span style="color: Blue"><span style="color: Black">PS: you may well come up with a real good squirrel load for that thing.</span></span></p><p><span style="color: Blue"><span style="color: Black"></span></span></p></blockquote><p></p>
[QUOTE="royinidaho, post: 165914, member: 2011"] Dave, You seem to be out on a limb on this one.;) With a chrono and some messing around you can get there. After seeing someone else's experience with reduced loads of 4861 in a 243 I get a little queezy with the first shot but seemed to have survived so far.:rolleyes: I haven't messed with the 338 yet but will do so one of these times. Here are some links: [url=http://www.handloads.com/calc/reduced.asp]Reduced Load Calculator[/url] This could be a bit risky if double charged.... [url=http://www.reloadingroom.com/page33.html]Blue Dot Loads[/url] Here's my approach: Hogdon lists IMR 4350 and the 250gr bullet data. 83 gr = 2820 FPS 78 gr = 2698 FPS Thus 5gr pwdr reduction = 122 FPS velocity reduction. Or about 24 FPS /grain of powder Then 2968 - 2000 = 968 FPS desired velocity drop; 968 FPS/24FPS/gr = 40.3 grains of 4350 to get 2000 FPS. As is the usual warning: Sneak [B][COLOR=Blue]DOWN [/COLOR][/B][COLOR=Blue][COLOR=Black]on it a couple of grains at a time and stop "just before" something bad happens.:rolleyes: If nothing else, this response may well gather the attention of someone who really knows what they're doing and flame my little butt.:D But hey, I've been thinking about getting my butt 'waxed' any way.:eek: PS: you may well come up with a real good squirrel load for that thing. [/COLOR][/COLOR] [/QUOTE]
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