Initial results seem to indicate that I should be casting with cavities 2 and 4 of my mold.
Quote from: EdinGa on July 15, 2021, 01:53:46 PMInitial results seem to indicate that I should be casting with cavities 2 and 4 of my mold. If it repeats, then there is a signal. Some may insist on a double blind study. I would just do the cavity groups in reverse order, to see if the best groups follow the cavity or the order...
EddieI would single shot them from a tray, mag's can and will have accuracy effect etc.Then base your results on those tests.HTH'sDon
Single loading is a good idea. However, if ammo loads from the mag without undue force or "catchiness", then the potential for altering the projectiles is minimal. The converse is that if it takes a lot more force to load from the mag than single loading, then the projectile probably have some dings and scrapes on them, due to being made of soft lead.
EddieWhat make of air rifle are you using for the single shot tray?Don
Quote from: Nvreloader on July 17, 2021, 12:50:21 PMEddieWhat make of air rifle are you using for the single shot tray?DonIt's a .25 Hatsan Flashpup. I don't have a single shot tray for it, but I would buy one if I found it.
Quote from: EdinGa on July 17, 2021, 12:58:48 PMQuote from: Nvreloader on July 17, 2021, 12:50:21 PMEddieWhat make of air rifle are you using for the single shot tray?DonIt's a .25 Hatsan Flashpup. I don't have a single shot tray for it, but I would buy one if I found it. You might have to make one. I did for my Sumatra. You can take a eraser and trim it up to work. Jim Chapman did that once when he forgot the sst. I used a piece of hdpp for mine. Cut it to fit in the loading slot then using my drill press slowly drilled a slot.
Ed, For giggles I got an automated quote from Xometry to print one loading tray from ABS; using the file at www.thingiverse.com/thing:3267555https://www.xometry.com/quoting/home/? You can have it for $9 if you are not in a hurry. See image capture below.I renamed the STL part file "guide" because Xometry will ask if this is a firearm part. No it is not, but "Loading Tray" might raise questions that can be avoided. I have had an airstripper printed as a "valve body". From a legal perspective, you are not lying to them about the YES/NO firearm application question. If your file name is "lJKGFUCVFGHOYUKPJ-3 Mark2", that is your business.I would not ask for a quote to print an LDC out of stainless steel powder, for example. That will trigger all sorts of real trouble.I have used Xometry a number of times to print rubber, plastic and stainless steel parts not related to any form of "disposable piston engines"; and their parts are pretty good.
The idea was to ball-park the price at a commercial company. It is a small part and should not cost much. You should factor in shipping...
hWhat temp is your lead at? I cast just about all my ammo, slugs and pellets at 800*f with a pid temp controlled 4-20 lee pot.
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