1861 Springfield
40 Cal
- Joined
- Dec 8, 2020
- Messages
- 159
- Reaction score
- 150
Spent a nice evening making the Lyman 575213OS for my Pedersoli 1861 Springfield
Nice, whats your mold setup and are you having to resize?
I just ordered two molds for the same rifle I got in a couple of weeks ago and wondered how they worked with the cavity in the bottom.
Ugh...hahaMuch better than with the cavity in the top. Sorry just couldn't let that one slip by,
Spent a nice evening making the Lyman 575213OS for my Pedersoli 1861 Springfield
Spent a nice evening making the Lyman 575213OS for my Pedersoli 1861 Springfield
Make sure you drop plenty of sprue material. As the cast cools it pulls still-molten material from the sprue into the mold. If there isn't enough sprue you wind up with a void and you see a small hole in the center of the underside of the bullet. If you're watching the mold you can see it happen and know to put that cast back in the pot.New into BP, awaiting moulds and warmer days.
Have you had any issues with voids or anything issues specific to using a cavity mold that you can pass along?
This is the second time I've been here. Got me again. I thought it was about casting Minie bullets. What about paper patched Minie bullets? Anyone use them? Besides me?
I would say pour hot and fast.That has given me no voids as well hitting dead center of the hole. Im pouring at 850 degrees with a generous puddle on the moukdNew into BP, awaiting moulds and warmer days.
Have you had any issues with voids or anything issues specific to using a cavity mold that you can pass along?
what rifle are you shooting paper patch bullets in sir?This is the second time I've been here. Got me again. I thought it was about casting Minie bullets. Okay, so if we are all finally safe, what about paper patched Minie bullets? Anyone use them? Besides me?
Honestly when it gets to projectiles of this size, a few grains difference in weight is not going to make that much difference in accuracy. With that being said, when you are pouring for the little .32 calibre...I've found that that calibre needs everything to be just so so. Everything from bullet weight, to powder charge to pressure when seating the projectile needs to be consistent.Thank you sir!
On another note... what kind of weight variation do yall consider acceptable? In this session of casting above I was getting about 3 grains max swing. I weigh and shoot them in 1 grain batches when punching paper.
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