ACM Mossberg 500SSB review is out

HarryHirsch

Airsoft News released a review of the ACM Mossberg 500SSB (link) The chroned it at 200 - 210 fps with 0.48 8mm BBs, which is exactly 0.98 Joule maximum. So the Mossberg should be no problem in Ireland.

Cuddlesworth

HarryHirsch wrote: »

Airsoft News released a review of the ACM Mossberg 500SSB (link) The chroned it at 200 - 210 fps with 0.48 8mm BBs, which is exactly 0.98 Joule maximum. So the Mossberg should be no problem in Ireland.

If it does get taken in and tested at Ballistics, your gun could easily be over the limit.

[--SC(+)PE--]

I must have it, god its awesome looking in black.
I think my beloved m3 benelli has bust its tri-nozels :eek: *sniff*. If it isnt fixable ill be needed a scatter gun worthy of its place.
hopefully those clone m3's will be out soon and i can save her.

Fallschirmjager

scope i think i saw tm tri nozzles on wgc...

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cool thanks Falls, im still not sure if thats the issue. basically bb's are getting stuck around their and stopping me from returning the pump to the forward position. I cant figure out how 2 disassemble it yet either and from what ive read its going be extremely difficult.

kdouglas

Mossberg 500SSB + Black Krylon =

Edit: typical, rsov have none left in stock, hopefully they'll be back in time for a self-bought christmas pressie

Arcto

HarryHirsch wrote: »

Airsoft News released a review of the ACM Mossberg 500SSB (link) The chroned it at 200 - 210 fps with 0.48 8mm BBs, which is exactly 0.98 Joule maximum. So the Mossberg should be no problem in Ireland.

Hang on a second.....someone please correct me if im wrong becuase im just working this out as i go along (not very well).

If it fires a .48 bb (well call it .4 for comparisons sake) at 200-210 fps then shouldnt it fire one HALF its weight (.20) at DOUBLE the speed(400-420) ????????

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This should explain it, it is a little confusing at times

http://arniesairsoft.co.uk/?filnavn=/articles/fps_limits/fps_calc.htm

Mossberg 500SSB + Black Krylon =

Edit: typical, rsov have none left in stock, hopefully they'll be back in time for a self-bought christmas pressie

get your paws away from it! ITS MINE !!!

kdouglas

Arcto wrote: »

Hang on a second.....someone please correct me if im wrong becuase im just working this out as i go along (not very well).

If it fires a .48 bb (well call it .4 for comparisons sake) at 200-210 fps then shouldnt it fire one HALF its weight (.20) at DOUBLE the speed(400-420) ????????

no, because the equation is

1/2 mass * velocity ^ 2, it's the power of two here that makes the difference, the fps/weight graph is not linear

so 200 ^2 = 40000 but 400 ^ 2 = 160000

hence:
(.000048 * 0.5) * (200 ^ 2) = .96 Joules

(.000020 * 0.5) * (400 ^ 2) = 1.6 Joules

Check out the graph here for more

HarryHirsch

I dont know what you were calculating, but if you look on the graph, that you have posted, you will see that the green line 0.45g is below 1J at 210 fps.

Fallschirmjager

[--SC(+)PE--] wrote: »

cool thanks Falls, im still not sure if thats the issue. basically bb's are getting stuck around their and stopping me from returning the pump to the forward position. I cant figure out how 2 disassemble it yet either and from what ive read its going be extremely difficult.

scope i know on arnies (namely because i read it yesterday) there are a few TM shotty experts, might be worth winging over there for some help....

Fallschirmjager

what i didnt realise about this shotty until i read the review is that it doesnt use shells...thats a positive i think..it such a pity its the larger bb's...

excellent that its under 1 j tho, pity it isnt black, but since MIA are the krylon sellers now in ireland, i guess it would not be that hard to change..

is anyone going to get it??

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scope i know on arnies (namely because i read it yesterday) there are a few TM shotty experts, might be worth winging over there for some help....

ya i put up a thread last night and noticed an almost identical thread on some random forum nearly confirming my fears of a bust tri-nozel

excellent that its under 1 j tho, pity it isnt black, but since MIA are the krylon sellers now in ireland, i guess it would not be that hard to change..

is anyone going to get it??

Yes! no matter what needs to be done to it

conor-mr2

We need some CQB scenarios!!

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would work great down in g-tac i can tell ya that for a fact.

kdouglas

Fallschirmjager wrote: »

what i didnt realise about this shotty until i read the review is that it doesnt use shells...thats a positive i think..it such a pity its the larger bb's...

excellent that its under 1 j tho, pity it isnt black, but since MIA are the krylon sellers now in ireland, i guess it would not be that hard to change..

is anyone going to get it??

yup, definitely gonna get one, just need to decide now what colour(s) to spray it, definitely black for the body, not sure about the grip and stock though

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yea it actually looks pretty cool with a dark brown pump and stock though i think i still prefer it all black. wgc have some decent pics of the marushin varients.
Im going get a pistol grip and a heatshield for mine

kdouglas

yea, not sure if they actually sprayed them or if its just the light/angle of the picture?

all the other pics in the review show the wood being lighter in colour

[--SC(+)PE--] wrote:

Im going get a pistol grip and a heatshield for mine

linkage?

Arcto

kdouglas wrote: »

no, because the equation is

1/2 mass * velocity ^ 2, it's the power of two here that makes the difference, the fps/weight graph is not linear

so 200 ^2 = 40000 but 400 ^ 2 = 160000

hence:
(.000048 * 0.5) * (200 ^ 2) = .96 Joules

(.000020 * 0.5) * (400 ^ 2) = 1.6 Joules

Check out the graph here for more

Weird, i thought it would have been in ratio to it. Meh! Well corrected!

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Just going scour Ebay for em KD, something like this http://cgi.ebay.com/HEAT-SHIELD-W-GHOST-RINGS-FOR-MOSSBERG-12-GAUGE-SHOTGUN_W0QQitemZ290179634997QQihZ019QQcategoryZ73958QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
and http://cgi.ebay.com/MOSSBERG-FACTORY-PISTOL-GRIP-FOR-500-AND-590-12GUAGE_W0QQitemZ130173676937QQihZ003QQcategoryZ39425QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

Im not fully positive if the real steel pistol grip will fit yet.

Alvin T. Grey

Never could understand the attraction with shotguns. Well, except for a MasterKey system that is.............

kdouglas

ah... your looking at real steel parts, thought they were airsoft versions, i've seen wgc have m4-style sliding stocks, tempted to try one of them myself, heat shield would look good, i'd imagine you wouldnt have much trouble with the heat shield, but the pistol grip could be a problem

[--SC(+)PE--]

Ya just from scouring the intraweb alot of people say the marushin version takes real steel parts but as ya say yourself we can only speculate that a pistol grip is one of the parts their talking about, The sliding stock's a good idea and at least itl look different to mine