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Rifles, Reloading, Optics, Equipment
Reloading
Help with a 260 REM Load
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<blockquote data-quote="Locknload" data-source="post: 328699" data-attributes="member: 20333"><p>Ok, you are looking for terminal performance at distance. Change the thought process. You will need to switch bullets and powder so you can use the case capacity to its maximum effect and use the heaviest bullet (best BC and SD) that will stay super sonic past 1,000 yards if you truly want long distance performance. The idea of the 260 is not to push heavy bullets to achieve the result you are looking for, because the limited case capacity simply will not give you what you want with a heavy bullet. </p><p> </p><p>What you are looking for in combination is H-414 which was developed specificly for the 22-250 (similar case capacity) and the 120 gr Sierra HPBT MK. The max load in three of my rifle guns is 48 gr which produces an average velocity of 3,206 fps with all three grouping at sub .20 inches. Start at 45-46 grains and work up in your gun. My 260 rifle guns are all 1-8 twist and all have 26 inch barrels. I seat the bullets to .003 off for the bolt guns including the XP-100s and .050 short of mag length for the AR which I have throated to be .003 off as well, at that mag setting, with the 120.</p><p> </p><p>Just plug in what you have and what you want, in a ballistics program, and then compare the data to what I have posted.</p><p>Best,</p><p>Ed</p></blockquote><p></p>
[QUOTE="Locknload, post: 328699, member: 20333"] Ok, you are looking for terminal performance at distance. Change the thought process. You will need to switch bullets and powder so you can use the case capacity to its maximum effect and use the heaviest bullet (best BC and SD) that will stay super sonic past 1,000 yards if you truly want long distance performance. The idea of the 260 is not to push heavy bullets to achieve the result you are looking for, because the limited case capacity simply will not give you what you want with a heavy bullet. What you are looking for in combination is H-414 which was developed specificly for the 22-250 (similar case capacity) and the 120 gr Sierra HPBT MK. The max load in three of my rifle guns is 48 gr which produces an average velocity of 3,206 fps with all three grouping at sub .20 inches. Start at 45-46 grains and work up in your gun. My 260 rifle guns are all 1-8 twist and all have 26 inch barrels. I seat the bullets to .003 off for the bolt guns including the XP-100s and .050 short of mag length for the AR which I have throated to be .003 off as well, at that mag setting, with the 120. Just plug in what you have and what you want, in a ballistics program, and then compare the data to what I have posted. Best, Ed [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Help with a 260 REM Load
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