40 mm barrel on spikes hasvoc

Is there a 40 mm barrel i can mount of a spikes tactical 37mm havoc

Also are there beehive rounds for the 37mm tube

Have to register it as a destructive device first for both questions.

where can i get a 40mm barrel and for how much. And same for the 37mm bee hive

40mm barrels for the SPikes are not commercially produced. You need to register it as DD, then take it to a machinist to have them bore it out to 40mm. GROG

If you have it bored out, are there any issues with tube strength (post surgery)?

Genuinely curious...keep thinking in my head of the story of the guy who messed up his hand (granted it was a home reload).

Looking at my Havoc I would say that there is more than enough metal there to bore it out to 40mm. I was looking at the 203s in my arms room today and they are much thinner than the spikes.

wow...that is interesting. Good input. Thanks man.

No. No one makes 37mm beehive adapters. GROG

Then who makes beehives for the 40mm because i can probably machine it down to 37mm.

Randy Shivak and Brian Faucci make them.

40mm.com and canal side guns. GROG

anthony: It is easer to bore out a 37mm tube then to try and turn down a 40mm Beehive Round especially when they cost $250 - $385 each. I was going to turn mine down until I got it and noticed there wasn't enough wall thickness by the threaded area. I know of someone who did turn one down and it broke in half after only a few rounds fired. I had my tube bored out to 40mm and have had zero problems with it.

MadDog

were did you get that done at?

and how much did it cost

I had A&M Tool and Die do the job and they charged my $60. They are a local machine shop in UT but I now live in CO. Any good gunsmith with a lathe can do it if he has a boring bar long enough. The bar needs to be at least 6" long.

MadDog

+1 I remember seeing the pictures of the broken beehive. It broke right were the rear cap/striker assembly screws in and meets up with the breech face of the .22 lr barrels. Turning it down weakens it right where the relief cut for the threads is made into the housing.

Is there any way to thread a barrel bored out to 40mm?

Wingnut: Thread a 40mm barrel for what ??? A ginormous Flash Hider?????

MadDog

ACK, I meant rifle not thread.

No real reason to have it rifled. Correct me if I'm wrong Grog, but the only reason they are rifled in the first place is to impart spin to arm the grenade. SInce it is unlikely that you would be able to get a live HEDP or HE for that matter makes it pointless to do so.

Correct.

I have both rifled M203, and smooth bore M79, and both put everything I have on target. Yes, the rifling imparts spin needed to arm setback fuzes on HE, M407 practice HE, and CS rounds. All other rounds, like clusters, para flares, smoke markers, adapters, practice 781s, do not need rifling to use.

Rifling does add some range and accuracy, like the difference in a football thrown with a nice spiral, and one lobbed end over end. At ranges under 200 meters, you won't notice the difference. At ranges over 200 meters... close counts in horse shoes and grenades.

Oh... another thing to keep in mind... The main gun on the M1 Abrams is smooth bore too.

You are correct sir; however I was primarily interested in a rifled barrel so I could work up a spin-armed fuze for a spotting charge chalk grenade. I have a much simpler design than the one currently used and was intending to make use of < 105gr of FFFG black powder as a spotting charge.

I think you meant www.Mr40mm.com for Shivak.

but shoots a finned sabot round

http://40mm.com/

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