Originally Posted by
Larry Gibson
I believe that is just what I also have said numerous times.
Then why does it so often seem, that you argue against someone even trying
However, how many here can "correct those issues" with a cast bullet at 2600 fps and 38,300 psi out of a 10" twist barrel?
I believe that question really should be,,, how many wish to do so, with their own wants needs and goals in mind
Not many
Maybe, maybe not. But to lump everybody together, and make such a statement is a rather arrogant assumption
, or at least we've
you mean I don't you
not seen any 10 shot groups at 100 and 200 yards attesting to it as requested.
Put in such way, could be construed as insulting to one's integrity.
Perhaps, as long as you have suggested a book, maybe one could suggest to you reading,
Dale Carnegie's book "How to Win Friends and Influence People"
I know people here and eleswhere, whom don't post results for 2 reasons. One, they have nothing they care to prove, but only to themselves. Two, to save themselves, the disparagement, or out right being called liar's.
Much easier simply to control the RPM as I've apply demonstrated.
This conveys, it silly for someone to try something different, and think outside Your Box
Yes, a new barrel is expensive but so is a custom mould.
Considering it all starts with the boolit first, for me at least, the mold cost is good investment. But it is far less costly place to start, in my mind. The other option is always open, if I cant reach my goals with what I have, barrel wise. If I was to do it your way, I would still start with custom mold first, but that's me. Not saying others should do likewise. They can play the game any way they wish. It's not for me to decide what is best or easiest for them.
How much you're willing to spend depends on whether you really want to shoot cast bullets at high velocity with any degree of accuracy.
This really don't deserve a rebuttal, but again implies Your Way is Best.
Not to long ago a member posted a thread wanting advise on building and '06 so he could shoot cast at 2600 fps with moa accuracy. I advised him since he was building the rifle to use a 14" twist barrel of 26" length or longer. He berated me and said I was wrong and said many others had shot cast bullets at moa at 2600 fps out of 10" twist barrels including himself (sound familiar?). He didn't build the rifle but instead bough a M70 '06 with a 10' twist. I assume he gave the 2600 fps a try but last we read on that thread he was content down in the 1800 - 1900 fps range with that rifle as that's where he was getting the best accuracy. Well guess just how many RPM are generated in a 10" twist at 1800 - 1900 fps? Figure it out and you see it's under the RPM threshold that is "predictable". Funny how that works.
Anybody that has been shooting cast, and push a particular cartridge's capability, know things can get dicey in a hurry. Simply put by BaBore, more attention to detail is needed. Just because your said individual decided not to persue it, don't mean it can't be done in other ways than yours.
And I don't see anybody claiming your methods do not work, and are without merit. Just if someone wants to go another route, even if it takes more work, or attention to the inherent details, so beit, that is their prerogative,
What's funny, is how you tend discourage if not out right disparage those that want try other ways, than your way.
I suggest anyone wanting to shoot cast bullets at high velocity build a rifle to do so. I suggest a 14" twist for .30 cal in particular, especially the .308W or the '06. From my test you can see what can easily be done with cast bullets at 2600 fps simply by controlling the RPM.
A suggestion is fine, but your persistence of,,,,my way is easier, can get get annoying. Maybe you need to consider also, some are limited to working with what they have. And something easy is not an issue for them. After all, experimenting and shooting is part of the fun in getting there.
However, if you want to shoot high velocity at 2600 fps with your 10" twist '06, .308W, 7.62x54R, 7.65 Mauser, 8mm Mauser or any other cartridge with a barrel twist close to 10" you should understand the implications and consequences
According to you.
of pushing that cast bullet over the RPM threshold with the componants and load used in that faster twist. We can do everything right in casting and loading to ensure the bullet is balanced but when it accelerates from standstill to 2600 fps in 24 - 30" of barrel the bullet is under very high inertial stresses. Those stresses are what most often
but not necessarily always
make it unbalanced regardless of the care we Itake in casting and loading. Subject that unbalanced bullet to high RPM and we see the inaccuracy that results if it exceeds its RPM threshold as I've demonstrated.
With your practice's,,,,,,, others have shown otherwise, just by going to a slower powder than you suggest
Larry Gibson