Which load would you choose?

Hakaman · Post by **Hakaman** » Mon Apr 12, 2010 6:45 pm

I am starting to tighten my groups up a little by adjusting my reload data.
These are all 5 shot groups at 100 yards, using Sierra 70gr MatchKing bullets
loaded progressively with IMR4064 powder. Based on what you see,
what loading would you suggest? Personally, I'm not seeing much difference.
There always seems to be the one flyer in the bunch, caused by the shooter in this case. *****NOTE: Forget the center target group, that was just some junk store bought ammo.
Hakaman

blue68f100 · Post by **blue68f100** » Mon Apr 12, 2010 7:26 pm

Hard to say with the fliers. May need to shoot a longer distance to see what spread you get. But any will beat the 100gr factory.

bearandoldman · Post by **bearandoldman** » Mon Apr 12, 2010 7:27 pm

That 40.5 grain load shows some promise, what is the reccomended max?

Hakaman · Post by **Hakaman** » Mon Apr 12, 2010 7:38 pm

Hard to say with the fliers. May need to shoot a longer distance to see what spread you get. But any will beat the 100gr factory.

Ye Loquacious Olde Pharte
That 40.5 grain load shows some promise, what is the reccomended max?

I figure the fliers are "my bad", and if that's the case, I don't see a problem with any of the loads. I have actually put 2nd bullets thru some of the holes. I like your idea though, to try 200 yards

OM, the max, according to my Lyman Reload Data book is 42gr.
Haka

Post by **Bullseye** » Mon Apr 12, 2010 8:54 pm

What's the twist rate in your barrel?

R,
Bullseye

perazzi · Post by **perazzi** » Mon Apr 12, 2010 8:59 pm

Is this the .243 we had the discussion in the rifle forum????

Hakaman · Post by **Hakaman** » Mon Apr 12, 2010 10:03 pm

What's the twist rate in your barrel?

9.25"

Is this the .243 we had the discussion in the rifle forum????

Yes, I think so.

Post by **Bullseye** » Mon Apr 12, 2010 11:53 pm

With that twist rate I'd go with a heavier bullet. Try an 80 grain bullet with the same IMR 4064 powder loads.

R,
Bullseye

Hakaman · Post by **Hakaman** » Tue Apr 13, 2010 12:06 am

With that twist rate I'd go with a heavier bullet. Try an 80 grain bullet with the same IMR 4064 powder loads.

I have some 95gr matchkings on order, and believe it or not, I am trying some Hornady 58gr VMax bullets to see how they will shoot.
I was told by a tech at Sierra(he was a little bit annoying because he wouldn't let me explain my situation, and new everything) that
my gun (9.25" twist) will stabilize any bullet between 55-100gr's. I have plum run out of IMR 4064, but I do have a new 8lb jug of Varget.
I noticed that Varget and IMR4064 are right next to each other on the burn rate chart. They are also pretty much equal in grain amounts
for the same bullet. So I'll have to use the Varget. I do feel good that my groups are tightening up, I think I am finally getting the loads close.
Haka