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dope for a dope
The equation you are using for wind comes from a simplified equation that fixes wind for a M40 shooting 7.62 special ball. It is not a perfect fit for every rifle. And you may be using it wrong, if memory serves the "constant" changes with range. Here is an equation that will work for every...- LapuaBob
- Post #3
- Forum: Practical Marksmanship Questions
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Help me Spec an M40a1 type ELR rig?
Its not the rifle that will get you to 1mile. Its you. You need four things to get out there, a good rifle, a log book, a great range finder and time. I have managed four first shot hits at around one mile in the 5 years I've been at this. Three this year. ( I am vary proud of this.) If your...- LapuaBob
- Post #5
- Forum: ELR - Beyond 1000 Yards
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Is this barrel dying?
The gun still shoots half moa. It has not given me a reason to worry. I guess I'm asking am I really around 100 rounds away from a problem?- LapuaBob
- Post #5
- Forum: Practical Marksmanship Questions
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Is this barrel dying?
Before I purchased my Savage 111LRH 338 LM, I had two major concerns one was that I would prove I was no good at ELR marksmanship. Not to toot my own horn but... I am vary good at it, you all get allot of credit, I have been reading here for years. The other concern I had was something I had...- LapuaBob
- Thread
- Replies: 8
- Forum: Practical Marksmanship Questions
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Angle cosine indicator question
Think of this. If your shot is 1000 yards away and you dial up 30 MOA. What angle is the barrel now pointed up? One MOA is one 60th of a degree. ( That is were " minute" of angle comes from) So 30 MOA is one half a degree. The mark on your indicator that says .98 is for 9 degrees (or...- LapuaBob
- Post #4
- Forum: Practical Marksmanship Questions
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POA Shift With Successive Shots Using Semi-Auto
What type of rifle? What bullets? I have an FN FAL that got me started in Long Range precision shooting. With a muzzle brake (not a flash hider) I can control it but only with 150 grain bullets and a fight. It did take me a long time to figure out how to control it but with practice there is...- LapuaBob
- Post #2
- Forum: Practical Marksmanship Questions
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Range Report Unusual ballistic problems.
Yes, I stepped up and bought the Lapua 300s... Just in time for this powder shortage. I don't and have not had any Retumbo for a long time. I did just get some RE-33. Its advertised to be capable of similar velocity's (as was Magpro, RE 22, and IMR7828). I have a ladder sitting on the other side...- LapuaBob
- Post #7
- Forum: Ballistic Calculators & Field Results
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Range Report Unusual ballistic problems.
I'm going to lean on the mirage theory, I should have seen it. You guys are fantastic thank you. And thanks a ton to LRShooter101 for taking the time to remind me to stop over thinking things and look at one thing at a time. I would still like to blame Sierra but... Oh well.- LapuaBob
- Post #5
- Forum: Ballistic Calculators & Field Results
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Range Report Unusual ballistic problems.
I have been having some vary strange ballistic occurrences with one of my favorite loads. At 100 yds i get 4 of 5 shots in one hole, not a raged hole, a .40 cal. Hole. If I do my job. At 800 yds I have sub MOA accuracy. After 1k yds everything goes to hell. The bullets start to string vertically...- LapuaBob
- Thread
- Replies: 11
- Forum: Ballistic Calculators & Field Results
