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Discussion Starter · #1 ·
i need help with rifle shooting- i am a novice and dont know where to look or if i shud change anything--
yesterday i tried a 22-250 target rifle -here are particulars

distance to target 423 yards

shooting down hill @ approx 30-45 degree slope

wind is blowing right to left 10-12 mph

shooting 55 grain bullet

results --- 2 bullet group was 1in side by side

they were 3inches high

12 inches to left (same as wind direction)

i shot one more time and it was 4in high but same 12in drift

where do i find info to satisfy my curiosity on good or bad results?

what is the drift at 10-12 mph?

what effect is degree of slope?

when this rifle shoots on flat ground-will it change verticle poi?

wally riebesell
 

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Yes Wally with shooting downhill at such an angle gravity isn't nearly as influential on the bullet concerning elevation...uphill is the same...your gun will probably shoot 6-7" lower on flat ground...your wind drift is about right for the speed of the wind..in 10mph wind on any cartridge you can expect 2.5 to 3" per 100yds of drift..double the wind speed will double the drift
 

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there are scopes made that have hold points for yardage and a 10mph crosswind
there are range finders that will give u tru range no matter if uphill or downhill, all of these things cost a little bit of money, depends on how serious u get into it as to how much u want to spend Jim
 

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Discussion Starter · #5 ·
thanks for info-gees i'm green on this subject- i wish they wud have a made a 303 22-250 then i'd know!!!wally
 

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Check out Nikons website, then go to there spot-on program. Ive found it to be very accurate!!!! And gives you wind drift and how many inches of drop for your exact hand loads and if you know your muzzle velocity you can enter all of the info you have. This is very accurate data and its free and easy to use!! Good luck!!!
 

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You need to know the exact bullet- not the weight== the ballistic coefficient is what the tables will require

you might be amazed at the difference that different bullets make

Regards from Iowa

Gene
 

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@ 45 degree angle the point of impact would be the same as 300 yards

@ 30 degree angle it would be the same as 366 yards

There are alot more questions that need answers. was the direction of the wind the same for the whole 400+ yards?

Time of flight comes into play too. What was the velocity?

Was the wind gusting? were the shots at the same gust speed?

To many variables left that need info.
 

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Try the above site. It will give you more info than you can understand. Just plug in the required data & it does all the calculations fro you.. Butch from Pgh
 

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Discussion Starter · #10 ·
and now i know -why i like shotguns-- thanks wally
 

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JBM lets me choose my zero, gives max point blank range, energy, time of flight and a host of other stuff I don't need.

You do need to plug in the BC and velocity so it can gie you the data.

HM
 

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If you have a smart phone, buy the app named "shooter". You plug in your load info, bullet, velocity, barrel twist etc. and it will calculate the shooting solution for you. It also has a "slope function" that takes your shooting angle in to account.

The 22-250 is a great long range cartridge if you build one with an 8 twist barrel. Allows you to shoot the 75gr Amax which will greatly help with wind deflection.
 

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Discussion Starter · #14 ·
thankyou-- i'm feeling like i am going back to school---wally
 

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If Nikons spot on is to complicated for you I would reccomend finding the closest 5 year old to explain it to you, HAHA. It has every bullet made, listed by manufacturer, for your caliber, automatically enters your BC and with a few more entrys it is done, you can play with your wind speed and direction to show you how your bullet is affected. By far the easiest form of Ballistics reports ive ever used. This program also makes printable field charts and other charts for the data.
 
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