Veral Smith- Why are LBT bullets 300fps faster than other types

[243winxb]

You can expect approximately 300 fps higher velocity with LBT gas checked revolver bullets, when lubed with LBT lubricant, and loads are developed to take advantage of the power potential built into our designs. This compared to jacketed of similar weight, and in most cases other cast designs of similar weight.

  OK, lead bullets will go faster than jacketed, i will give you that. Lube with Moly will get a few fps more i would guess, have never used moly lubes. But 300 FPS more? How can this be and still work within Saami pressure limits? Take for example a S&W M29 in 44 magnum with a maximum PSI of 36,000? Thank you for your reply.

[Halftime]

What was the subject line that this quote is pulled from?

[243winxb]

 Located here Statement is under "WHICH WEIGHT IS BEST?"  http://www.lbtmoulds.com/selectbullet.shtml  Asked same question here also. http://castboolits.gunloads.com/showthread.php?p=621965#post621965  I am think the answer is in the book? 

However, you can become expert in developing maximum power loads by reading our book Jacketed Performance with Cast Bullets,

[cinosbus]

Probably because of more powder capacity - less bullet in the case - combined with the stuff you mentioned above.

[Drilling Man]

  Less friction = more fps.

  DM

[crash87]

  I am think the answer is in the book? 

However, you can become expert in developing maximum power loads by reading our book Jacketed Performance with Cast Bullets,

[/quote] 

You just answered your own question, because, "IT IS IN HIS BOOK". Provided you have a copy, all you need to do is seek it out. Crash87

[243winxb]

Looks like it could be done using the 454 Casull. Just going from jacketed to lead gives 150 to 175 fps more velocity. The pressure is then lowered also. If loaded to 65,000 PSI using the extra powder capacity allowed by Lead Bullets Technnology Bullet designs, it should increase bullet speed by 300 fps.  So the statement is "True" i guess, just not for all calibers of Handguns.  And i saved the price of the book by using Google. 

[Veral]

  You saved the price of the book and I had to eat beans instead of steak!  I hope YOU enjoyed the steak better than you would have the book!
  The higher velocity, or power potential which I spoke about is partly because MOST LBT revolver designs give far more powder room than other mold designs, but not all do.  The WFN's for example, when set up with a short nose, don't have the velocity increase potential of an LFN with nose extended to .5, for the revolvers which will handle the length.

  I specifically stated that LBT lube is required.  It will hold pressures way below any other lube I know of, and in fact, with loads that would blow a gun up using most lubes, switching to LBT bullet lube will normally allow the use of considerable more powder, if there is space, without reaching dangerous pressure.

  I explain in my book how to measure pressure accurately.  This will be comparison measuring only.  e.g. Fire some factory loads, then duplicate the pressure accurately using the same brass, with any powder or bullet desired.  -- If one follows my procedure, on guns like the S&W 29, and uses a .45 nose length LFN, pushed out with the slower powders, especially H110 or 296, 300 fps will be easy to obtain over most other cast bullet designs and for sure with jacketed of similar weight.  The WLN will give the highest speed of any bullet made, by anyone, I believe, but it demands fairly heavy bullets.  Contact me if interested in purchasing, as options go off the chart, so recommendations are  gun specific.

[243winxb]

Thank you for the info, its food for thought. Still eating beans tho.