rwp
Button Buck
Posts: 18
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Post by rwp on Nov 16, 2010 16:31:59 GMT -5
Little help please. Shooting 43gr. 4759 with this bullet. My shooting range is 175yds. Sighted in O at 100yds. and is about 2 inches low at 175. What do you think the drop would be at 300 in order to set up range finder? Thanks Bob.
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Post by rangeball on Nov 16, 2010 16:54:36 GMT -5
Bob, only way to know for sure is to shoot it but since that's apparently not possible I tried to plug some guesstimates into a ballistic calculator. Guessing the load at 2200 fps and zeroed at 100 yards, I had to bump the BC way up to were it can't be right and still wasn't able to come close to a 2" drop at 175 yards, more like 4". No idea what's going on.
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Post by spaniel on Nov 16, 2010 18:06:21 GMT -5
Did you fire a full, good group to get that 2" drop? That sounds too little. An inch of error in measuring the 175yd drop could have a big impact on your 300yd drop...enough to matter.
Even driving the 200SW to 2770 fps I have around 3" of drop at that range.
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rwp
Button Buck
Posts: 18
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Post by rwp on Nov 16, 2010 18:38:35 GMT -5
Sorry It was 44gr. not 43 and it started to pour so never went to target just scoped it. Fired 3 shots, first was about 4-5 inches low , next two seemed to be around 2-3 inches. I understand this was not prof positive and will never shoot at a longer distance without being some what positive. Just hoping one of you may have shot something close to this load at 300.
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