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Old 11-24-2019, 11:28 AM   #1
Young Gun
Join Date: Nov 2019
Posts: 2
Dimpled BB's

Okay, so I'm bringing it back again. I know, beating a dead horse. I know, it would be expensive and difficult to make dimpled bb's (unless you get creative with small batches). But I never found any testing actually done, so decided to do some myself.

This video is 12 minutes long, so if you don't care to watch it, *the results are inconclusive so far*. For part 2, I will test at a greater distance for accuracy at range plus any possible increases in range.

Hope this can shed some light on whether or not dimpling is worth pursuing.
I think I might try this again (part 1 and 2) with 8mm bb's and actually go full out on the dimpling with a method I know will work.

If dimpling proves to provide no advantage over high polish bb's, I'll let it rest...and move on to other alternative bb designs...

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Old 11-25-2019, 01:30 PM   #2
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Join Date: Apr 2016
Location: Washington
Posts: 561
You probably want to use the highest polish BB you can find and then roughen them in much smaller increments- we're talking different polish solutions well before straight up sand-paper and...well, I wouldn't even include gritty spray paint...that's...going to have a widespread effect... Which brings me to my main concern here: The surface roughness discussion is primarily regarding range - I haven't really heard anyone suggest a change in accuracy - and removing material will reduce BB weight and size- both of which will negatively affect range (size because the BB will leave the barrel with lower energy). This poses a serious problem trying to test this...

As an aside, you mentioned using heavier BBs on purpose, but lighter BBs should actually more drastically illustrate performance changes between the BBs.

You might be interested in this Reddit user's insights:
It seems from this information, many BBs may actually come from the manufacturer right around the ideal surface roughness...
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Last edited by MagicMarker; 11-25-2019 at 05:12 PM.
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Old 11-28-2019, 04:33 PM   #3
Young Gun
Join Date: Nov 2019
Posts: 2
Thank you for the feedback. And yeah, this isn't by any means the most accurate "testing" one could do, but figured I'd throw it together with what I have and can afford at the moment. The bedliner finished bb's were thrown in to provide a slightly heavier weight and something different from dimpling, not necessarily as an equal. If I had the money I'd love to perform the tests with multiple weights, dimpling, different roughnesses, and preferably inside. But I unfortunately can't at the moment so figured I'd deal with what I can and possibly inspire others to put together even better experiments.

And I was thinking that the heavier weight would keep the shots more consistent and help see the small changes the finishes have more easily but not leave to wondering if it's just the inconsistencies of lighter bb's. Usually with lighter bb's it seems like they can be all over the place as far as accuracy goes. But I can see where you're coming from as well since the surface changes would have a much more drastic effect on the lighter bb's.

Thank you for the links as well. I'll be sure to check them out and see what conclusions they came to.
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