Miroku 7000 and steel shot

[rick1127]

Hi guys.
I'm hoping someone can put my mind to rest here..
Before I go spending money on getting my stock altered to fit me properly.
Will my barrels be OK with using steel shot ?
I know for lots of you this will be a stupid question but I havnt used my shotgun for about 5 years now with work and rifles taking over.
So I'm just after clarity of this before spending on the old girl

 

[Stumpy2]

Check the proof marks but you should be fine with standard steel loads with 70mm cartridges.

There are now standard steel loads suitable for 2 1/2 inch chambers.

Usually recommend half choke or less.

 

[rick1127]

Cheers il have a look to see what proof marks are on it

 

[wertyp]

I've got a Miroku 6000 which is the fixed choke version of the 7000. Mine has Teague thin wall chokes fitted and I've put around 5,000 standard steel loads through it. These have been:
Gamebore Super Steel 32 gram no.4
Gamebore Black Gold eco wad 32 gram no.4
Lyvale Express supreme steel 32 gram no.4
No barrel or choke damage at all

 

[jall55]

I've got a Miroku 6000 which is the fixed choke version of the 7000. Mine has Teague thin wall chokes fitted and I've put around 5,000 standard steel loads through it. These have been:
Gamebore Super Steel 32 gram no.4
Gamebore Black Gold eco wad 32 gram no.4
Lyvale Express supreme steel 32 gram no.4
No barrel or choke damage at all

Me too and again no issue

 

[rick1127]

Ahh your putting my mind at rest now guys.

 

[jall55]

Ahh your putting my mind at rest now guys.

If game shooting try - ELEY VIP 32 gram Eco Wad size 5 - lethal

 

[tarponhead]

Check your chokes are half or less and get it services if you haven’t used it for up to 5 years. Miroku 7000 is my go to shotgun, but needs to be cared for - getting older now, like me!

 

[jall55]

Check your chokes are half or less and get it services if you haven’t used it for up to 5 years. Miroku 7000 is my go to shotgun, but needs to be cared for - getting older now, like me!

I personally dont worry about choke - mine is 3/4 and 1/4 with standard steel

 

[Taff]

Really you don,t worry about choke ? I personally have seen new guns with bulging barrels due to steel shot, even chokes ripped out of new A400s due to using inappropriate chokes.

 

[jall55]

Really you don,t worry about choke ? I personally have seen new guns with bulging barrels due to steel shot, even chokes ripped out of new A400s due to using inappropriate chokes.

Not one bit - 23 guns in our syndicate - and had 18 shooting today
No issues
Fired thousands and thousands and thousands of shots between us now

 

[Taff]

All ok then, so what chokes do they have and shot size and weight, assuming that there guns are half and three quarters, in steel that works out at full and full plus two ? Using newtons third theory, every action there’s a reaction ( the bauble effect in barrels) the pressure in the full choke barrel will be very high, but if it works for them then that’s ok, I don’t, know why manufacturers bother putting no steel on multi choke guns.

 

[wertyp]

Really you don,t worry about choke ? I personally have seen new guns with bulging barrels due to steel shot, even chokes ripped out of new A400s due to using inappropriate chokes.

I agree. I've scored the 3/4 choke in my Armsan A612 by shooting 36 gram no.3 steel through it.

Not one bit - 23 guns in our syndicate - and had 18 shooting today
No issues
Fired thousands and thousands and thousands of shots between us now

What chokes were they using? I'd be taking it steady with anything more than half choke.

 

[rick1127]

When i get back home on Tuesday il have a look to see what's fitted.

 

[jall55]

I agree. I've scored the 3/4 choke in my Armsan A612 by shooting 36 gram no.3 steel through it.

What chokes were they using? I'd be taking it steady with anything more than half choke.

Im on quarter - three quarter

 

[Smellydog]

Using newtons third theory, every action there’s a reaction

Law, Newton's third law, Evolution is a theory...
Anyway, have you heard of Newtons forth law?

 

[Taff]

As you know there never was a forth, but it’s irrelevant to the discussion, are you saying baubling does not happen causing possible excessive pressure? Resulting in bulging of barrels.

 

[Smellydog]

As you know there never was a forth, but it’s irrelevant to the discussion, are you saying baubling does not happen causing possible excessive pressure? Resulting in bulging of barrels.

Newton's fourth law is, for every male action there is a female overreaction

 

[rick1127]

Ok I've just got back and these are the markings on the barrel.
Special steel 12G 2, 3/4 on the top.
18.4
900kg
12-70
BNP then 1 crown above it.
Other than the 12g and 2, 3/4
I'm guessing that's 12 gauge and 2 3/4, (70mm) chamber length.
As for the others I've no clue

 

[Liveonce]

the barrel so only one, then 18.4 bore diameter and 900kg proof pressure