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Long Range Hunting & Shooting
Bullet choice when reloading?
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<blockquote data-quote="budlight" data-source="post: 548147" data-attributes="member: 2939"><p>I had never owned a .243 So I read up on what people were using. I decided that it would take a 9 1/4:1 twist and 26 inch barrel to shoot the heavier bullets. </p><p></p><p>You don't want information over load. So you buy a few hundred new cases, one type of primer and one type of bullet.</p><p></p><p>You then buy slower powders to achive near filled cases. Then you do the chrono time to find the speed you want with exceptable case life. I load 3 rounds of powder weight and increase it in .4 grain increments. find the speed you desire with the closest avg. speed. Some powders can shoot a bullet within 10 - 15 fps. with ten shots, Very important for ballistic charts.</p><p></p><p></p><p>Then with new everything it is off to the bench rest and you then look at seating depth. I arrived with three different powders all at 3200 fps and I varied the seating depth for accuracy at 200 yards. At near one inch I called it good for 10 shot groups right on the X</p><p></p><p>Then I needed a lighter Varmint round and I zeroed in on a bullet wieght. </p><p></p><p>So I end up with only two bullet weights and the best powder for each. </p><p></p><p>The biggest thing is keep everything consistant and the fewest variables.</p><p></p><p>With smaller cals. like your 25 a lead sled to take out human error are a good thing.</p></blockquote><p></p>
[QUOTE="budlight, post: 548147, member: 2939"] I had never owned a .243 So I read up on what people were using. I decided that it would take a 9 1/4:1 twist and 26 inch barrel to shoot the heavier bullets. You don't want information over load. So you buy a few hundred new cases, one type of primer and one type of bullet. You then buy slower powders to achive near filled cases. Then you do the chrono time to find the speed you want with exceptable case life. I load 3 rounds of powder weight and increase it in .4 grain increments. find the speed you desire with the closest avg. speed. Some powders can shoot a bullet within 10 - 15 fps. with ten shots, Very important for ballistic charts. Then with new everything it is off to the bench rest and you then look at seating depth. I arrived with three different powders all at 3200 fps and I varied the seating depth for accuracy at 200 yards. At near one inch I called it good for 10 shot groups right on the X Then I needed a lighter Varmint round and I zeroed in on a bullet wieght. So I end up with only two bullet weights and the best powder for each. The biggest thing is keep everything consistant and the fewest variables. With smaller cals. like your 25 a lead sled to take out human error are a good thing. [/QUOTE]
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Bullet choice when reloading?
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