243 reloading for coyotes

Did the OP ever get the 200yd accuracy he was looking for?

One thing that was not mentioned was parallax in the scope. That can account for great groups at 100yds, and the groups opening up at longer ranges.
 
K-22hornet,
I think your parallax idea is very likely the solution. Unless it is really windy, 1/2” groups at 100 yards shouldn’t turn into 2”groups at 200 yards.
Honestly, I’m really happy with 2 1/2” groups at 200 yards under “field conditions” while hunting coyotes. I would be ecstatic if I could hit within 1MOA 95% of the time while sitting in hunting conditions with shooting sticks or other rest.
 
B14bsb said:
Hey guys, I'm knew to the page and was wanting to ask some questions on 243 win reloading for coyotes. Hoping some of the experienced hunters can help me out. I've got a bergara 243 win with a 1 and 10 twist and 22 inch barrel. I just recently found two fairly accurate loads with 39.5 and 41 grains varget pushing the Berger 68 grain match bullet. At 100 yards the 39.5 grain load was about the size of a dime then at 200 yds the group opened up to 2.5 inches. I'll be using this rifle in mostly calling scenarios but was wanting to find a bullet/load combination accurate up to 400 yds or so. Anyone had any experience shooting the 68 grain Berger for coyotes and what kind of effective range were they good for.
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Bergara’s website states that the 100gr Hornady interlock 100gr is a guaranteed sub MOA for the 243. I personally have a LH B-14 Timber that shoots dimes at 100 yds @ 2890 fps MV. Keep in mind that every gun shoots differently due to tooling wear and machine marks down the bore. Another note: if you’re sighted in with a second focal plane scope 1/4 MOA adjustment, expect groups to open based on zero distance. 1 MOA= 1.05” @ 100yds and increases based on yardage. Mil. Scopes maintain a 3.06” group size but have been more precise using a Ballistic Calculator. Hope this helps.
 
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