243 win

[velvetant]

A friend wants to help load up some 243 Winchester ammo for his rifle to see what reloading is all about.
He has cases and Nosler 95 BT.
I have H4831sc and CCI 250 primers in large quantities so I'll use them for the 50 rounds we are going to do.
What I don't have are reloading manuals, they are still in storage from my move.
I have the Hodgdon online manual but like to cross reference multiple sources.
Can someone do a quickload or check some manuals for me please
243 win.
Nosler 95gr BT
H4831sc
CCI 250 primers
COAL 2.680

Thanks
Randy

 

[tim629]

disregard my original post

thanks for correcting me dubyam

 

[Guy Miner]

That 95 grain Ballistic Tip is an outstanding hunting bullet!

Link to Nosler's load data for the .243 Win:

http://www.nosler.com/243-winchester



Here is an excellent article on handloading the .243 Win:

http://www.6mmbr.com/243Win.html

Regards, Guy

 

[Guest]

Well, H4831 isn't in the latest Nosler guide. I think Tim posted the IMR4831 charges. It's not in my older Speer #12 or Hornady #4, oddly enough.

It is in Hornady #7:
95-100gr Hornady bullet data
Start charge: 42.0gr Velocity: 2800fps range (Hornady only gives a "threshold velocity" not actual individual load velocities.)
Max charge: 45.5gr Velocity: 3000fps range

That mimics the Hodgdon online data pretty closely, though it shows an additional grain of powder at max charge, where Hodgdon stops at 44.5gr. As always, work up carefully.

 

[SJB358]

A friend wants to help load up some 243 Winchester ammo for his rifle to see what reloading is all about.
He has cases and Nosler 95 BT.
I have H4831sc and CCI 250 primers in large quantities so I'll use them for the 50 rounds we are going to do.
What I don't have are reloading manuals, they are still in storage from my move.
I have the Hodgdon online manual but like to cross reference multiple sources.
Can someone do a quickload or check some manuals for me please
243 win.
Nosler 95gr BT
H4831sc
CCI 250 primers
COAL 2.680

Thanks
Randy

Here is something to get you started..

Cartridge : .243 Win.
Bullet : .243, 95, Nosler BalTip 24095
Useable Case Capaci: 48.476 grain H2O = 3.147 cm³
Cartridge O.A.L. L6: 2.680 inch = 68.07 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : Hodgdon H4831 SC

Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !

Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
% % Grains fps ft.lbs psi psi % ms

-20.0 83 37.60 2426 1241 31525 9314 84.2 1.437
-18.0 85 38.54 2490 1308 33774 9649 85.8 1.398
-16.0 87 39.48 2554 1376 36188 9976 87.3 1.359
-14.0 89 40.42 2619 1447 38790 10296 88.7 1.316
-12.0 92 41.36 2684 1520 41588 10606 90.1 1.275
-10.0 94 42.30 2750 1595 44602 10904 91.4 1.234
-08.0 96 43.24 2816 1672 47853 11190 92.6 1.194
-06.0 98 44.18 2882 1752 51343 11461 93.8 1.156
-04.0 100 45.12 2948 1834 55154 11716 94.9 1.119
-02.0 102 46.06 3015 1917 59259 11954 95.8 1.083 ! Near Maximum !
+00.0 104 47.00 3082 2003 63709 12173 96.7 1.049 ! Near Maximum !
+02.0 106 47.94 3148 2091 68535 12372 97.5 1.016 !DANGEROUS LOAD-DO NOT USE!
+04.0 108 48.88 3215 2181 73745 12548 98.2 0.983 !DANGEROUS LOAD-DO NOT USE!
+06.0 110 49.82 3282 2272 79400 12701 98.8 0.952 !DANGEROUS LOAD-DO NOT USE!
+08.0 112 50.76 3349 2366 85558 12828 99.2 0.922 !DANGEROUS LOAD-DO NOT USE!
+10.0 114 51.70 3416 2462 92276 12929 99.6 0.893 !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 10% relative to nominal value:
+Ba 104 47.00 3237 2211 76255 12162 99.8 0.971 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 104 47.00 2879 1749 51949 11583 89.6 1.149

 

[Guest]

@Tim - no trouble, my friend. The reason I notice it is that I had to "unload" a whole batch way back, not long after I got started handloading, due to getting the wrong 4831 data for the powder I had. Since then, it's an issue I see almost instinctively. And when I load with these powders (or the 4895s) I literally triple check my data and powder, to be sure.