Originally Posted by timeless61
where is the mention of tighter bores? I wanted to read that, thanks
Home page > Tech Info > Bullet Design says this:
- Portion of the bullet that is between the Seal Tite Band and bore rider or ogive. This portion of the bullet engages the lands, or rifling, ahead of the Seal Tite Band and gets the bullet tracking true to the rifling before the Seal Tite band enter the lands. It is absolutely critical the bullet is tracking properly before Seal Tite Band engages or "stripping" occurs and seal is lost. Our bullets are tested to ensure the driving band is long enough to ensure this does not happen. Since seal is not achieved with the driving band on our bullets its diameter is under nominal caliber diameter to prevent excess pressure. Caution!
It is extremely important that if any individuals had a custom barrel made undersize, the driving band diameter must first be measured to ensure it is smaller than your groove diameter or you will
get excess pressure. Solid copper does not give like lead core bullets and custom size barrel users must be very cautious. Any SAMMI spec. or factory rifle barrel will not have this problem. The Driving Band length can be customized to allow for more or less jump into the throat to bore angle."
I would suppose the use of the word "extremely" was not unintentional.
They are sounding pretty good to me.....