need 243 wssm load data

[huntinfool18]

im in the finishing stages of building my 243 wssm on a 28" 1-8" twist barrel. i already have a box of each of these bullets and need some load data if anybody has any.

1.115 berger moly VLDs
2.105 hornady a-max molys
3.105 berger VLDs
4.107 matchkings

any info would be a great help thanks huntinfool18

 

[Rex Rat]

Powder

Try Steve's Reloading Data Pages Remember to start out at a reduced charge.

 

[Winchester 69]

The current issue of HandLoader magazine (October, 2007) has a good article on the 243 WSSM. It includes loads for several bullet choices.

 

[steve4102]

Here you go.
WSSM Zone -- Your one-stop shop for all things WSSM including reloading data for the 223 WSSM, 243 WSSM, and 25 WSSM

 

[MISSLEAD]

243 wssm

i have one 28in hart 1-8 twist
i use 105 bergers 1 thousant in the lands and 47 gr hodgen 4831sc mine stacks them at 100 yds i havnt had pressure problems yet but this is close to max load

 

[436]

I did some LR shooting with my M70 .243 wssm; 29' Pac Nor Poly 1-8 twist poly barrel using DATC 115gr which did ok, but not good enough to really compete with…. The twist really should've been 1-7.5 or 1.7 twists'…, so I switched to the lighter bullets, the 107's and 105's. Here's a couple of load's that might help you get started.

(1)107gr. Sierra Mk, H4350 {41.0grs}, Russian KVB-7 primer, WW case.
(a)Vel's 2994 fps 5 shot's SD 10 fps
(b)Vel's 2999 fps 5 shot's SD 11 fps
Accuracy was very good, Yeah I thought my P35 was broke on the second five, it was working just fine, pressure? No problem in my rifle.

(2)105gr. Berger VLD, IMR 7828 SSC {43.0grs} W-W WLRM primer, WW case
(a)Vel's 2990 fps 10 shot's SD 29 fps
Accuracy was on the mark for ten shots, just at 0.50 inch. Pressure seemed fine.

My goal was to try and stay as close to .3000 fps as I could, the .243 wssm as no problem breaking 3000 buy quite a margin, however I wanted to shoot the barrel for awhile.
I've done other work on the .243 wssm with; IMR 4350, WRX, RL19 and RL22 but'..., they'll need a little more testing. The one that might bring home a win is Hodgdon… Hybrid 100V and another that seem to have a few qualities I'm looking for in LR bullet weight is IMR 4007 SSC

Good luck.
436