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velocity increase?
- Thread starter XHODZAX
- Start date
Re: velocity increase?
Sorry, but the general experience of 10-50 fps more per inch is often swallowed up in general "speed differences" between any two barrels.
I've seen same-length barrels differ by more than 50 fps.
So, your expectation of maybe 125 fps for those six more inches (two inches more above 26 often increases velocity less than two inches between 20 and 22, for example) could be minus 50 fps if your new long tube is "slow", bringing you only 75 fps more.
Caliber, powder, bullet weight and bearing surface will also affect the outcome.
Your question is like asking "how fast is the wind?"
Search your powder, bullet and caliber on this site and on Google, cross-reference the charge weights and barrel lengths, and then you can come up with a reasonable estimate.
Sorry, but the general experience of 10-50 fps more per inch is often swallowed up in general "speed differences" between any two barrels.
I've seen same-length barrels differ by more than 50 fps.
So, your expectation of maybe 125 fps for those six more inches (two inches more above 26 often increases velocity less than two inches between 20 and 22, for example) could be minus 50 fps if your new long tube is "slow", bringing you only 75 fps more.
Caliber, powder, bullet weight and bearing surface will also affect the outcome.
Your question is like asking "how fast is the wind?"
Search your powder, bullet and caliber on this site and on Google, cross-reference the charge weights and barrel lengths, and then you can come up with a reasonable estimate.
