Home Forums Hunting & Shooting BPCR Postell Bullets?

Greg,

I think I need to make another road trip to Sierra Vista and hang out in your shop a bit...

Ed

#1 is sure 'nuff pointy, but if launched gently it might work. Maybe. My money would be on #2 or #3. Just sayin'....

Pure speculation on my part Greg, but I'm guessing if the first one had the nose bobbed just a bit, maybe a 1/8" radius nose, it could run. Lose a little weight but rumor has it that slumping sucks.

Now this wouldn't work well for greasers, but a two piece swagged bullet with a more pointed nose, dims for paper patch, that might work. Hammer dies rule! This one's .510" at the base, around .502" on the nose and 800 grains. 150 grains of Swiss 1.5 FG A man's bullet.

Recoil is mild in a 40# rifle.



PS: Nice wood under them Hindenbergs.

Hornet bullets have jackets a little thicker than aluminum foil, and yep, 29 brazillion rpm can do that.

Interesting I tried it with reduced gallery loads, out of a 629 Smith. It seemed to work semi-okay one time. Another time I tried it, the ball stuck halfway out the muzzle, and left half the powder unburned in the barrel. Just for the record, half-burned Bullseye stinks

I think I follow the explanations - the long pointy bullets need fast twist to stabilize, and the fast twist creates problems with big soft bullets launched by black powder. Makes Sense

DITTOS!!!!!

This is slightly off topic, but you guys realize the world runs on ones and zeros, right? Ya just gotta make 'em fall into sequence really, really fast.

It's like the economy. You could run the world's entire economy with a single dollar bill if you could move it fast enough.

ONES:



ZEROS:

What do the initials RO stand for?

Ed

Run out. It's a measure of concentricity of bullet alignment to the axis of the case. This was part of a load work up for a .250 Savage. Some rifles are sensitive to this, some are not. Apparently mine doesn't care much if the bullets are a bit cockeyed.

The measure is made about 1/8" north of the case mouth after seating the bullet, and at that junction indicates the sum of yaw (opposing sides) in thousandths of an inch from centerline. It's a relative value and would be different if done near the bullet tip. "They" say: .000" for match, .001-.002" for small varmints and up to .005" for big game...generally.

Straight wall cases have little issue with this, another reason to go with BPCR. There are a number of strategies in load technique which allow you to zero runout but that's for another thread.

Thanks for the numbers, Ranch13

No problem.
Yesterday I was working on some patched loads for the 44. At 600 yds, when I ran out of patched loads and switched over to greasers, they impacted nearly 4ft below, and with the slight left to right breeze nearly 4ft right , of the patched that were shooting dead center....