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TheFirearmsForum.com
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10-28-2012, 03:04 PM
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#1 |
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Member
Join Date: May 2012
Location: Selma Alabama
Posts: 41
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shooting question
Today at the shooting range I was shooting my reloads for my 270 cal. I was shooting speer 130 gr. BTSP with IMR 4350. I started at low charge and worked my way up. 1.5 Inches high at 100 yards but as I worked my way up with my charge weight my bullets would shoot lower and lower to when I got to my last three reloads I was shooting dead on at 100 yards. Can anyone explain?
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10-28-2012, 05:32 PM
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#2 |
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Senior Member
Join Date: Mar 2011
Location: Lompoc California
Posts: 543
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Re: shooting question
Your rifle recoils during the bullet's flight down the barrel. A slower load exits the muzzle after more barrel rise than a faster moving projectile. This is very apparent in handguns--a 230 gr. ball load in a 1911 shoots way higher than a 200 grainer.
You are just seeing the "equal and opposite reaction" at work.
__________________
Life's too short to shoot an ugly gun..... |
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10-28-2012, 07:12 PM
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#3 |
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Advanced Senior Member
Join Date: Feb 2010
Location: Little hut in the woods near Blue River Wisconsin
Posts: 2,294
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Re: shooting question
myfriend has it exactly right, It is what I would expect to happen.
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"When once a republic is corrupted, there is no possibility of remedying any of the growing evils but by removing the corruption and restoring its lost principles; every other correction is either useless or a new evil."~~- Thomas Jefferson Roman Catholic, Life Member of American Legion, VFW, Wisconsin Libertarian party, Wi-FORCE, WGO, NRA, JPFO, GOA, SAFand CCRKBA
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