On Thu, May 1, 2014 at 8:25 PM, Kurt Feltenberger <xxxxxx@thepaw.org> wrote:
> On 5/1/2014 4:15 PM, Jeffrey Schwartz wrote:
>>
>> Depends on Tech Level.
>> If you can make an FGMP, then you can make as many as you want.
>
>
> Effective Traveller tech level would be about 12-13, give or take a few
> levels depending on the specific weapon.
>

So scale up an FGMP's 'breech' to the desired boom level , and skip the barrel.
No Uranium needed.... and much less fallout.