I've used my 550b since '84 and 550c since '16 with good success. When I started reloading in '84 it was for 44mag and 264wm. With the 2nd stage being their powder die and hopper is set it @ 61.3gr of imr4831 for the 140sbt sierra's. I never chrono'd any back then, but seem to be very...
THE BIG DIFFERENCE IS SUPPOSED TO BE WITH 15K EXTRA PSI ON MAX FOR THE ADVANTAGE ON SMALLER CAPACITY CASES. NOTHING DIFFERENT THAN THE 277FURY, BUT W/O THE 2-PIECE CASE. SURE YOU CAN GET THE SAME VELOCITIES WITH THE SAME BARREL LENGTH OF THE 7BC, BUT REQUIRES A LARGER CAPACITY...
Any pre64 is a winner! Great find! I tried getting Winchester to replace the barrel on the '61 model 264wm of my dad's, but wouldn't do it since it still meets their moa (1.5 or 1.25) before they'll replace it on their nickel. I've put over 2,500 rounds down the pipe since i started...
on my dad's pre64 i used 61.3grs of imr4831 w/sierra 140sbt's. that's the load i started with and have used ever since until i stopped shooting the rifle 2,500 rounds + down the pipe over 30 odd years not counting the 7 years before i started reloading. started shooting it at 11yo and...
But the satisfaction is rewarding on the job done by yourself! I'm thinking about changing my name cause too many people use it when wanting something :ROFLMAO:. Tireless work
For 308win to me anything less than 16" isn't very efficient. 18-22" for 150-168's is near perfect. I only have 1 308win with a barrel longer than 22" (26"rock river ar).
sierra's 210sjhp worked well for me. but then again there wasn't anything the 629 8 3/8 didn't like. 180's would be my choice tho. as far as the gold dots go, i haven't tried any in the 44mag, but did shoot some in the 50ae. since deep (wt & mule) are thin skinned the xtp's would work...
if i ever get around to annealing, i want to do a 264x300wm and/or a 277x300wm or just do 300prc versions as to keep the .540 face. the 416r face would be a bit much and there would be a lack of action choices and they'll be heavier.
i've been wanting to do that for a garage floor. my next house will have that along with it being able to cool............no hockey allowed :ROFLMAO: .
pole barns are such fun to erect! so much fun my junior of hs our ag class built a very large barn for the new ag location...........later that summer a tornado destroyed it and the next year's class rebuilt it. pole'd nails are even more fun to drive :ROFLMAO: . i've built many of miles...
and if wanting more case fill try the 555, 565 and 568's. 568 gets close to 570 velocities, but requires 2-4grs extra.
that being said, i'm waiting to get the 32" 7.5t 264wm up and running (build not completed yet). plans are for 150smk's w/570. velocities could exceed 3,250 and closer to...
more about color choice
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