Woodchuck Hunter
New member
Need help understanding what my gun is telling me. I have an AR-10 in .243 win. that I was planning to use for groundhogs out to 400 yrds. It has an Aero Precision upper and lower with a 16" Wilson Combat barrel with a 1:10 twist. I'm trying to get Hornady 58 gr. V-Max to group using various weights of Varget, IMR 4064 and RL15. The best group I can get is 1 1/2 inches at 100 yrds. Is the bullet unstable( too light) because of the short barrel, twist rate or is stability OK and i need to look at other bullets in the same weight range?