Figuring out accuracy loads, what's your method? Other 223 bolt tips..

[Dolomite_supafly]

PM sent with particulars.

 

Removed for safety and liability reasons.

Edited June 15, 2013 by Dolomite_supafly

[timthetoolman]

PM sent with particulars.

 

Removed for safety and liability reasons.

 

 

Got it and responded, but here's my response minus your info in case it helps others:

 

I got mine from David, Magnum Materials....I'm sure you know him.  He also told me to use CFE223 data, and I happened to have run that already so I was pretty excited about getting the 842.  However mine is marked WC842, not SMP842.  Who knows if there is even a difference but I was under the impression that SMP was specifically St.Marks manufactured (I think).   I can tell you that I have run through 16 pounds of MY 842 and so far it's pretty consistent jug to jug, but I have been told over and over that a chrony must we used because there is no lot number control.  That being said the 842 (mine or yours) is way friggen hotter than CFE223.  The same time I picked my jugs up, I got some for a buddy.  His pet load in his bolt (which is the same exact Rem700 as mine) loves 26 grains and does not flatten primers, while mine does.  He didnt chrony his, but as you saw from mine they were pretty fast at 25.6 grains...specifically I got this thru my 26" barrel:

 

3536

3454

3481

3490

3472

 

For giggles I ran a couple thru my 16" AR and got:

 

3159

3205

 

Then i gave up out of frustration.

 

I decided to do some plinking with my go to 842 AR loads of 24.6 and ran several thru the chrony:

 

2976

3037

3009

3003

2996

3051

3051

3065

3003

3079

2962

3037

3023

3065

 

That same 55 grain FMJ with 24.6gr thru my bolt ran 3284.

 

Now keep in mind I realize my speeds aren't super consistent, but thru my AR this is a plinking load and I dont really care.  I run them thru my Dillon at about 350 an hour and it's my equivelent of a rimfire plinker.  With the exception of a couple flyers per group I can keep them inside an inch with crappy eyes and a 9x Nikon at 100 yards, so I am happy.  But that being said I want more from my bolt and I would prefer not to burn up my Varget or 4895 on prairie dogs.  

 

I loaded up another 40 like I said and will run out to the range this week to try them out.

 

How far away do you put your chrony?

[timthetoolman]

Off to the range for some final testing...wish me luck.  I also completed a lower build so I will be running it through some paces to ensure all is tip top.  

[timthetoolman]

Well after a whole lot of toying around to find my "sweet load" using WC842 in my bolt action I have landed exactly in the same place I did with my AR.  24.6 grains of the stuff I have seem to yield the best accuracy, and most consistent speeds. Out of my 26" barreled Rem 700 I got a range of 3392 to 3401 fps.  The primers looked great, and I found no difference between BR and SR primers (not a shock).  They shot under an inch and I wasnt trying too hard.  I just finished doing brass prep on a stupid number of cases in prep for my prairie dog hunt in SD this Ausgust.  I am loading them up with 52gr hornadys and calling it good.  Now its time to get my dope down and go make red mist.