QUERY: "1. Nose pour vs bottom pour? ...."
RESPONSE: I have never been able to pour a consistently well filled out bullet w/ a bottom pour furnace.
I have had much better & consistent success when I poured w/ a dipper from a plumbers pot atop a propane camp stove fired by/ a 5 gallon tank hooked to it.
I firmly believe that the problem is that the BPCR bullets are very big & the Caster needs a very hot alloy flowing @ a very heavy rate of flow to completely fill out the mould & maintain a consistent bullet weight. If the flow rate is not very strong, my experience tells me that the melt & the mould are starting to cool before the cavity if completely filled out.
Also w/ the Lee & the RCBS pots that I previously had, I was unable to keep the melt temp w/ in a reasonable range. One of the factors in casting is rhythm or cadence & once it is interrupted, the quality of the bullet will suffer. W/ some electric pots, the am't of time it takes the thermostat to cycle on/off is way too long & some are not that well insulated to hold the heat in.
QUERY: "2. Laddle vs bottom pour for pouring?"
RESPONSE: See above.
I also found that by drilling out the laddle spout to 'bout 3/16", the mould fills faster & the melt retains more heat as it fills the mould quicker.
QUERY: "3. Is there a heck of a difference between a $45 Lyman mould and a $200 Bob Jones?"
RESPONSE: Yup. The am't. of metal in the body of the mould & the sprue plate is much thicker. Also w/ a custom mould, you'll more often than not have a mould w/ 3 pins instead of the normal two, a much thicker & flatter sprue plate, a round cavity--make a round bullet base, a mould cut to fit your rifles chamber, a mould cut to cast a bullet of a specific dia. w/ a specific alloy, etc.
Also a custom mould might/will allow you dispense w/ the bullet sizing operation.
QUERY: "4. A powder question. Is Swiss really that good or is it like every other shooting sport. If the guy who wins shoots it everybody has to have it."
RESPONSE: I shoot GOEX. For my eyes & shooting skills, I cant justify the cost of SWISS. Last year, I bought a case (25 pounds) of mixed granulation GOEX from Powder, Inc., for approx US $260.00, inc delivery & HAZ MAT. A case of SWISS would have set me back bout US $425.00.
Both are good powder & both have thier pros & cons.
http://www.powderinc.com/I also strongly urge you to visit the Shiloh-Sharps web site & do a search on casting, bullet casting, etc. Also do as search for WAAGE --it is the latest &best furnace to melt lead for bullet making.
http://www.shilohrifle.com/forums/index.phpAlso below is a link to a thread that has links to on-line casting & reloading primers. Reloading & casting for a BPCR is not like reloading w/ White powder.
http://www.graybeardoutdoors.com/phpbb2/viewtopic.php?t=72361&sid=e712 b227f8f7c1be4d47d5f0ee5eef37
Heed particular attention to these two links: for reloading 'n' casting:
http://www.ssbpcrc.co.uk/Resources/Introduction%20to%20BPCR%20Loading. pdf
http://www.longrangebpcr.com/8Phases.htm By casting your own, you have total control over the finished bullet, the alloy content, & you exercise your own quality control standards.
You can remelt the rejects bullets. To become proficient @ casting, it does take some time & effort, but you can remelt the bullets @ the end of ea. practice session. You are also not @ commercial casters mercy & the UPS delivery schedule.