6ppc questions

[BoydAllen]

It is the overall length that is the issue when discussing twist.

 

[Sandamer]

I got .8455" - .8465". That was measuring 4 bullets.

 

[Josh11]

Im not a great shooter by any means but if you want to learn about your set up read the artical by speedy on what causes vertical. This may not be your problem but it will help you find your set up and what is wrong with it. Good piece to read.

 

[mkihne]

I think you will like the edgewood or similar. The fill is important. I have had good luck with Sinclair's zircon sand. The grains are sharp and therefore "stack" better and hold their form almost to a fault(I occasionally will take the perfectly flat bag and pinch it to reset the sand). Others on the forum have varieties of mixtures that work well(do a forum search on bag sand). Also, you should be able to get a nice angle on your front bag ears to provide a consistent grove for you rifles forearm. As shown, I think your bag surface is too much of an arc for shot repeatability. You will see this when you get your edgewood.