6mm/30-30 Ackley Improved Help

[expiper]

Not to beat a dead horse, but those 1/4 inch groups at 200 yards are usually for the barber shop shooters. I have shot competition since 1997 and found that there are few 1/4 inch groups shot at 200 yards with the most accurate 6 PPC rifles in the world. Below is a picture of 5 groups that I shot at the NBRSA Nationals in Kansas in 2010. I won the Sporter 200 yard competition that day with my BAT/Leonard/Krieger with 36X Valdada scope. (blind hog found an acorn). If you will notice there is NOT a single 1/4 inch group in the five. It is easy to say that a rifle will shoot 1/4 inch 200 yard groups, but it is very hard to do. Good shooting...James
View attachment 1082308

wow,,,your rifle was working that day,,,and so were you,,,most people who only shoot at the local range never know what a good group is,,,all of your targets are a little knot with one leaked out just a weeee bit,,,very impressive,,if my math is correct that is a .1727 agg !!!! the best I ever did was a low 2xxx from memeory,which included my best .228" target (a screamer),,,( have been shooting since the early 70's ,,kids and work always got in the way,haha),,,,these keyboard shooters have never seen what just a little pick up or let up can do to bullet impact ,,,,thank you for shareing some "real" 200yd targets ,,,shot by a real competitor,,,,Roger

 

[jroc]

While it is a very old thread I'd love to know if someone has any proven load data for this. Just chambered a couple contender barrels.

Aaron

Aaron I'll probably be seeing both of these barrels this summer eh?

 

[gemihur]

Similar case volume and similar bullet ... consider this:
https://2c1af0f2-8f11-456a-a750-2db926a5a8e2.filesusr.com/ugd/c8cad4_b3337fbbfab5451c82222977eb3f9d09.pdf

 

[Bill K]

Definitely true. In fact, all of the Contender wildcats I have played with headspaced off of the rim. You could literally set your die up and check headspacing with the barrel off of the frame.

I have a sample 6mm30-30AI coming with the PO Ackley book. I'll photo it tomorrow night and get it posted up.

While you do use the rim for headspacing, you also want to be sure the shoulder also is touching the shoulder on the chamber, so you headspace off both points and make sure the measurement at the face plate/frame are in specs. Bellm's TC has a good article on how to make sure your TC's are head spacing correctly.