Trulock
& Harris - Gun
Reviews - Archive - Beretta A391 Xtrema

Beretta A391 Xtrema. - 30 July
2002
Over the last few
years, the way in which we look at wildfowling has changed
dramatically. The reason of course is the itroduction of non toxic
shot loads as mandatory ammunition. Much has and is being said about
these different types of shot. And opinions vary enormously as to
the effectiveness of these cartridges. It would be less of a talking
point if non toxic shells were as good as the lead ones that we all
remember fondly. It would also be a little more acceptable to most
if these cartridges were nearer in price to the lead equivalent.
Though I feel it has been largely forgotten that all of us used to
miss with lead as well as these new cartridges. The one choice in
non toxic shot that is fairly close to lead in terms of price is
steel. The main problem that steel shot has had is becoming
acceptable to shooters. It is, on first though, a little
disconcerting to be shooting a relatively hard substance down the
barrels that could do damage. But as long as the rules are obeyed
then there is no real problem.
In the main those
rules are to only use steel shot cartridges in a gun that has the
correct chamber length and proof marks to comply with those
particular cartridges. It is also advisable to use 1 / 2 choke as a
maximum, to prevent the risk of the shot load bulging the choke.
Steel shot is actually soft iron and is harder than lead,
consequently it does not have the same give when it encounters the
choke so less restriction is advised. Because of its lighter weight
steel shot does not retain its energy to give as long a range as
conventional lead rounds. To overcome this a couple of things can be
done: firstly, the shot size can be increased. For instance where
you would perhaps shoot a 5 shot lead load, use 4 or 3 in steel.
The other thing is
to increase the shot load and consequently its power. In the USA
where they have used steel shot for many years 3 1 / 22 chambered
guns have been common place for some time. However over here we are
rightly overseen by the proof houses and the catridges for these
guns have to meet the safety standards laid down by the CIP - proof
authority.
As a result of all
this and the fact that steel shot loads are only now starting to
gain more acceptance with wildfowlers we are only now starting to
3.5" guns come on the market. One of the first was the Mossberg,
almost a head of the game due to the limited availability of
cartridges.
Now Beretta have
unveiled their gun for 3.5" cartridges. Aptly named the Xtrema,
presumably in reference to the extreme nature of the cartridges used
in it as well as the conditions in which it may be used. And
certainly that is the impression given by its appearance. The gun
has matt black metal work and black synthetic stock and forend.
Actually not quite wholly black. There are grey stippled inserts in
the stock and forend made of rubber and designed to provide maximum
grip; this I would say they do, probably under fairly harsh
conditions. As for the rest the matt is to give no chance of
reflection.
At a glance the gun
appears the same as its standard 391 cousin the Urika. But looking
closer it soon become evident that this is a very different beast.
The 3.5" chamber has made Beretta approach this gun from a
different perspective. In order to load the cartridge and equally
importantly eject the fired cartridge case, the gun needs to have a
larger ejection port. Hand in glove with this is the need for a
bigger bolt. Because of the extra power generated by these
cartridges the bolt needs to be very strong. So on the Xtrema the
bolt has been given a rotating locking bolt head with two locking
lugs to give the securest lock up.
The action bars -
note the plural, there is only one on the Urika - are an integral
part of the bolt and slide assembly at the front of the gun. The
bolt spring rather than being housed in the stock, is around the
magazine tube. In the back of the action where the bolt spring would
have been is the bolt travel shock absorber. Which will reduce
stress when the heaviest cartridges are used.
The action frame
itself is made of alloy. And for the trigger plate a polymer has
been used. Both these materials are strong as well as keeping weight
to a sensible level; an obvious consideration with such a big
gun.
The trigger plate
and its mechanism are also very different from the Urika. All parts
are black finished steel to prevent corrosion. And the layout of the
mechanism is also different, with the mainspring directly powering
the hammer. One good thought by the Beretta designers is that the
trigger guard will accommodate a gloved finger.
The barrel is also
a different animal altogether. The gas piston has been modified and
made much stronger to accommodate the extra gas generated by the
bigger shells. There are also exhaust valves that vent away excess
gases from the most powerful cartridges. These are contained within
the barrel loop or gas cylinder.
The barrel breech
is also quite a feat of engineering. As well as the locking lug
pockets at the front of the breech, at the rear are locating lugs
the key into the action and provide absolutely rigid support for the
barrel so that once assembled there is no movement between the
two.
In order to give
the breech the highest strength and wear resistance it has also been
hard chrome plated.
The bore itself is
also chrome plated as are most Beretta guns. On the Xtrema the
optima bore system is used to give best performance in terms of
pattern and recoil.
The top rib is a
matted 6mm wide. Basically the optima bore system is an overbored
system of 18.6mm with an exceptionally long forcing cone that
virtually disappears up the barrel. This is in conjunction with the
optima choke plus choke tubes which further enhance the pattern with
a minimum of shot deformation. These are flush fitting choke tubes
and the gun is supplied with a very comprehensive set of 5 tubes.
The stock and forend may appear to be plain synthetic but have also
been designed for good grip and comfort. As with the Urika the
Xtrema can be adjusted for drop and cast and is supplied with the
shims for this.
The stock is
finished with a Geltek recoil pad, which will also help to absorb
recoil from those very heavy loads. The gel tek pad is made by
Beretta for all their guns and is basically a polymer skin with a
gel core. They are soft yet shoulder well because they do not
snag.
Although the Xtrema
is built to accommodate the heaviest loads it will shoot right down
to 28 gram loads and up to 64 gram that 2 1 /4 oz loads. So this
could be an ideal all round gun for a wildfowler who wants to do a
bit of clay shooting. For such a big gun, and the Xtrema is pretty
long, it is not a heavy gun and handles very well. I would not say
that the gun is too long but it does seem that you can pick which
bit of the target that you want to shoot at.
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