Re: 300 NORMA MAG ?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Rocky Mountain</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: TX65</div><div class="ubbcode-body">I have finished up my 300 Norma Magnum improved. I bumped the shoulder back, changed the shoulder angle to 40 degrees and shortened the overall case length to 2.450". Photo shows it with 230 Berger Hybrid.
Flikr Photos I will be shooting this in F-Open with a Robertson GBF Stock, Bat M action, 32 inch 10 twist LW Barrel topped with an S&B PM II 12-50x scope. Rifle weighs 21 pounds 14 ounces.
Will be out doing load development the week of December 19th.
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Thats one very long neck you have on your new 300 Skadi????
How long is it???
What velocity are you hoping for with the 230gr out of your 32 inch barrel? </div></div>
.4634" Long Neck to support a 1.640" long bullet (230 Berger)
I have run the cartridge in QL and velocities projections go over 3100 fps, but I am looking for an accuracy node around 2925-2950 fps which will give me just under 5 moa of wind drift (10 mph 90 degree) at 1000 yards. It takes the 7mm 180 VLD 3100 fps to achieve that. As those who shoot the 7mm 180, 3100 fps has a barrel life of only about 500 rounds.
While I could run faster, its all about getting the accuracy and having barrel life with the right powder. Not to mention, this will have no muzzle brake.