Possible new option for a cap making tool!

Patmarlin said:

Hi Curtis,

There's a limit to what dies like these can do for numerous reasons and that cannot be done. The only way to replicate factory caps is with manufacturing industry hydraulic blank forming machinery. The purpose of these dies are to enable us shooters an affordable way to make caps that will work.

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I like the way these are looking, for me the problem isn't aesthetic so much as practical. During hunting season in my area there is a lot of temperature swings and humidity. The compound I'm using seems to be quickly degraded in cold, wet weather. Those wrinkles in the sides of the Tap o Cap style I've been making expose the compound to humidity and I believe have been hurting my reliability during wet weather.

Patmarlin said:

Sent some caps to Sam Gtrubicon, yesterday to try with the .007". These are from the same prototype die set with no changes as yet. Sam has graciously been helping me with R&D testing and he's close in California so that helps as well. Curios as to how the .007 AL performs.

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Pat, without having them in hand and judging only by the photo, these caps seem too shallow to be attached to the nipples. Is it just me?

bpalbee Are you using a binder for your caps? Some of the binders we use could provide weatherproofing . I use a fast pistol powder (700X)in acetone. Many use Duco Cement. Some have used Finger nail polish thinned in acetone. These are good effective binders that really hold the prime together.

BP Albee could also use aquarium tube cut to fit over the nipples to help seal the caps in wet weather.

Sandro_Ventania said:

Pat, without having them in hand and judging only by the photo, these caps seem too shallow to be attached to the nipples. Is it just me?

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They attach fine. The photo is decieving. With the old cap photo of .014" thick metals shown earlier in this thread on a TC #11 nipple the length was 156". That is only .003" shorter than a RSW 1075 cap length. The last photo I show of the caps in the baggie were formed with .007" with the same dies, so that should easily have made the length even longer, but I didn't measure them for an exact number. This is not the final product.

n.h.schmidt said:

bpalbee Are you using a binder for your caps? Some of the binders we use could provide weatherproofing . I use a fast pistol powder (700X)in acetone. Many use Duco Cement. Some have used Finger nail polish thinned in acetone. These are good effective binders that really hold the prime together.

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I've been using the Duco diluted with acetone, but I have some tite-group laying around. Some early caps I made following the 22sharpshooter instructions and I think that binder was dextrose? It wasn't sufficient in my opinion, I didn't like the way the compound crumbled out of the caps when rattling around in the storage tin. There's a guy making Hazzard style cartridges on youtube (unless he got purged) and he was sealing them with nitrocellulose which might be same base as Duco?

I tried 700x on a couple batches, but I now use just the duco, the compound stays put.

Take my money! Do it now!