What does SP mean on Beretta chokes?
steel shot use
Every Beretta choke tube has information engraved on the tube to identifying the manufacturer (PB), the constriction (F, IM, M, IC, CYL), the approval for steel shot use (SP) and the choke type (Optima-Choke, Optima-Choke Plus, Optima-Choke HP)
Are Optima and Optima HP chokes interchangeable?
I’ve said this many times on this site, but I’ll say it one more time…. JUST BECAUSE YOU CAN DO SOMETHING DOESN’T MEAN YOU SHOULD! Do not use Optima chokes in an Optima HP barrel. They are different and each takes chokes designed for that particular barrel.
What is Optima Plus choke?
Beretta Optima Plus Delta Waterfowl 3-Pack Set Our Waterfowl Extended Choke Tubes are manufactured from 1704 stainless steel and designed to throw tighter and denser patterns than conventional choke tubes. These choke tubes feature a 25% longer parallel section in the choke, thus throwing more consistent patterns.
What is a plus choke?
Invector-Plus™ choke system. The longer choke taper inside an Invector-Plus choke tube produces consistent patterns with more uniform densities and fewer fliers. Invector-Plus eliminates gases slipping between the choke tube and barrel that could damage the choke tube and the barrel.
Are Beretta and Benelli chokes the same?
Beretta and Benelli Shotguns use 4 different choke systems. The Benelli Crio was in very few guns and is no longer being put into shotguns. Once again these two chokes have the same outside dimensions but are based on different bore diameters and should not be interchanged.
Are all Beretta chokes the same?
Beretta Shotguns have 1 of 4 different choke systems. Click the link below for ID information. Interchanges with Carlson’s Mossberg 835/935 style threads OR Winchester Style. Please call to identify which choke system is in your gun.
What does 4 notches on a choke mean?
Improved cylinder
A higher notch count means less constriction. 1 notch = Full. 2 notches = Improved modified. 3 notches = Modified. 4 notches = Improved cylinder.
What is CL choke?
CL means Cylinder Bore, a constriction of . 000″ (none). This choke should throw about a 35%-40% pattern into a 30″ circle at 40 yards. This is the widest pattern and should work nicely out to 20 yards. 020″) and should pattern 60% This pattern is good at 30 yards.
What is an Invector barrel?
Invector is a choke “system” used by Browning and some other manufacturers in some of their guns such as Mossberg, Winchester, and perhaps a couple others. Invector Plus is a different choke “system” also used by Browning.
What’s the difference between choke tube and Optima choke plus?
In order to handle a higher volume of steel shot shells used in field hunting, the Optima-Choke tube was revised and manufactured with a thicker wall size. This revised choke tube was named the Optima-Choke Plus and featured the same Optima-Choke internal dimensions and performance but has a larger outside diameter and revised thread location.
When was the Optima choke added to the SV 10 perennia?
With the introduction of the SV-10 Perennia and Prevail Series Over&Under shotguns in 2008 a third Optima-Bore choke configuration was added, the Optima-Choke HP. As noted above under the Optima-Choke Plus section, the extended use of high performance steel and metal alloy non-toxic shot imparts considerable stresses.
Why did Beretta choose the Optima choke system?
One of the principal objectives in designing the Optima-Choke HP (OB HP)system was to develop a choke tube system that would withstand the rigors of the extended use of heavy payloads of steel/metal alloy shot while being able to retain the weight saving and handling characteristics of the lighter Optima-Choke barrel contour.
What are the dimensions of mobilchoke choke tubes?
The following pertains specifically to 12 gauge Mobilchoke tubes. While the dimensions noted will vary for the Mobilchokes in 20 gauge, 28 gauge and .410 gauge tubes, identification is very much self evident. Barrels that use the Mobilchoke will typically be marked only with the gauge marking.