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Rifles, Reloading, Optics, Equipment
Reloading
Help with 300RUM 215 Berger and ES
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<blockquote data-quote="barefooter56" data-source="post: 1128469" data-attributes="member: 85389"><p>Vulture,</p><p>You are correct! The groups will open up and then the bullet strikes will begin to cluster as the barrel reaches it optimal fouling point. Once this happens you can start you seating depth testing , group testing and chronographing your loads. From the picture you either don't have enough fouling rounds down the tube or your load still need tweaked to get rid of the vertical. Once you've got your load set, since this is a hunting rifle . I suggest you go out to the range and shhot a 3-4 shot group out of a cold clean barrel. Then finish this range session by putting rounds on a practice target until the barrel until the bullet strikes stop rising and begin to cluster. When you get home don NOT clean your rifle! Leave it sit a day or two then take it back out to the range and shoot another 3-4 shot group out of your cold fouled barrel and compare it to the cold clean group. Whichever one is best. That's the way to head out into the field with. If its the cold clean group. See what you have as far as velocity by chronographing so you know what you have and run the information on our BALLISTICS CALCULATOR to check your velocity and foot pounds of force at different ranges. Your baselines here are the SAMMI minimums of 1800 feet per second and 1100 foot pounds of force at the animal.</p></blockquote><p></p>
[QUOTE="barefooter56, post: 1128469, member: 85389"] Vulture, You are correct! The groups will open up and then the bullet strikes will begin to cluster as the barrel reaches it optimal fouling point. Once this happens you can start you seating depth testing , group testing and chronographing your loads. From the picture you either don't have enough fouling rounds down the tube or your load still need tweaked to get rid of the vertical. Once you've got your load set, since this is a hunting rifle . I suggest you go out to the range and shhot a 3-4 shot group out of a cold clean barrel. Then finish this range session by putting rounds on a practice target until the barrel until the bullet strikes stop rising and begin to cluster. When you get home don NOT clean your rifle! Leave it sit a day or two then take it back out to the range and shoot another 3-4 shot group out of your cold fouled barrel and compare it to the cold clean group. Whichever one is best. That's the way to head out into the field with. If its the cold clean group. See what you have as far as velocity by chronographing so you know what you have and run the information on our BALLISTICS CALCULATOR to check your velocity and foot pounds of force at different ranges. Your baselines here are the SAMMI minimums of 1800 feet per second and 1100 foot pounds of force at the animal. [/QUOTE]
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Reloading
Help with 300RUM 215 Berger and ES
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