I was in my shed today and my eyes fell upon my stockpile of spent rifle cartridges. I recalled Mrballeng's instructable for using 40 cal. shells to make valve caps.

Step 1: Select Some Shells.

I have 40 cal. shells among others, and after a quick rummage through the pile, I  realised that they all looked similar in dimension around the base.
<p>Thanks, these will make a great gift for several friends. One of them is nearly impossible to shop for, but I'm sure he'll love these.</p>
Is this right 531
I bet 591
Cool stem covers, I particularly enjoyed your novel way of cutting the casing<br> with a pipe cutter. I would have used a hacksaw and spent hours leveling<br> and smoothing the the edge.<br> <br> BTW me guess is <strong>439</strong> casings.<br> <br> I got that value by counting what was visible in your clear picture<br> ( all your pics are clear and in great focus ) and multiplying by 5.<br> That is four sides and a center less one that you cut and used.<br> <br> A<br>
The winner! I thought there would be more guesses after 200+ views, but I think nobody is really interested, or could be bothered to read the whole I'ble.<br> <br> BTW, I said guess, not measure,calculate or estimate! :D<br> <br> Anyway, the total at the time was 421. You are very close regardless of the lack of response. Congratulations and thank you for showing an interest in my stuff.<br> <br> There can be a lot of negative reaction to anything involving firearms, so I hope that is not the reason for the lack of response. I was just trying to reuse/recycle something that I had lying around.
what is a patch??<br>
It's a small icon that gets added to your profile. Members receive them for certain achievments or milestones reached. Pro members are also allocated some patches that they can give to other members as a reward or gift. The member that gives the patch can choose one from the instructables patch library or make their own patch to give away. Click on a few user's profiles and see the patches that they have received. (I only have one so far.)

About This Instructable



Bio: If I didn't have bad luck, I wouldn't have any luck at all.
More by caarntedd:5 Minute Stomp Rocket (It will take you longer to read this instructable than to complete the project). Bullet Shell Valve Caps (all credit and a tip of the hat to Mrballeng). 
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