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Berretas claim to be back bored but in truth allthough they are its marginal your bore will be around .732 thats little more than a standard 12ga Remington 1100s average out at .730 to .732 and never claim to be back bored but there you go, by contrast Brownings are around .740 just for comparison. Anyway if we take your bore at .732 and your terror is .675 which it will be i am sure of that, you are looking at a choke thats full + 17 though now 20 though is half choke. so its tight . .

Yes 3 inch .

I thought the winchesters were a little better than that, i dont acctualy have a mec .410 press i use a friends for the .410s i load, but i have considered getting/ making my own RTO head to try and get a bit more mileage out of the cases, its tough getting winchester cases.

The yellow tin 82 is the last of it it came in a bigger grey tin with a label before that and in fact most of the time it was in production, for a 28gram load it is a little slow burning 80 or 60 would be better powder for that weight. There is a fair few loads in a book by garard i have it some place if you want that data i can send you it if you want. From memory most loads around the 1 1/16th to 1 1/8th oz area were about 22-25 grains dependant on wad type. I used a 1 3/4 oz lead load with that 82 it was a good load. I still have about 3/4s of a big grey tin of it left.

I dont do crystal balls but i think you will be presently suprised how good that choke patterns. By the way i am not on SRMs payroll and trust me if i could get performance from stock tubes to beat them i would be using them i hate spending money but i will spend it on these tubes. .

I am biased i admit it i rate Tikkas and thats what i would say you should get, i have had nothing but fantastic performance from them, i have a .22250 tikka myself and love that rifle and the calibre.

The tps at 10gram are the bigest capacity i can find for steel shot even in a 76mm case, i was not very clear in my original post but i have plenty of 65mm cases but not that many 76mm so i need to know if the chedite cases load a few times or are they more or less a throw away item. If i could get winchester case i would be ok but looks like i am going to be stuck with chedites. What i am planning to do with these loads? Quote... I am fortunate enugh to have th shooting on an area of flood water adjacent to a river that has a healthy snipe population but this land is next to a reserve and an sssi and as it is classed as a wetland non tox is needed. I have been using Bismuth but last year i shot a lot of snipe down there and some woodcock latter on and i used a little more Bismuth than i was comfortable using, and as i am shooting them over the pointers i can get by with steel. Useing my old wingmaster .410 for this task this is one perfect little gun for this kind of hunting.

I want to reload .410 with steel. are the tps steel wads at 10gram capacity the bigest you can get for steel or hevi? These are for 65mm cases only. Winchester cases seem much more durble than the chedite cases that dont look like you will get many reloads out of them, just what are the best cases and where can you get them from.

That link is brilliant thank you for posting it here, i only had some old data sent me by lylvale a few years ago.

Vectan produce rifle powders with a broad range of usage, the TU range (tubular) in TU3000 TU5000 and TU7000 cover most of the common rounds and data is available fron Lylevale Express the uk importer. I have some Vectan rifle data if anyone wants it but its a few years old now.

I have been a advocate of aftermarket tubes since the mid 1990s when i used the Hastings turkey chokes in 1187s and sp10 and gold 10gas. Subsequently with steel i tried the standard chokes in various guns but generaly the aftermarket tubes proved well worth the investment, the first patternmasters worked well but briley chokes proved better in my experience and i was satisfied untill i had a trip to america and on a day pass shooting on Horicon marsh wisconsin a popular pass shooting meca , here i came accross the first SRM terror choke i ever saw it was in a berreta 303 this gun shocked me how well it worked and gave 87% patterns when we tested it compared to a borrowed 870 with briley IM tube that gave 78% with the same federal factory load. I was sold i got my first terror choke a rem choke for my 1187 a .675 and i used this choke for over 6 years. So what i believe is that in most instances aftermarket choke tubes do work and although not allways will out perform the factory tubes regardless of loads used. The faster the loads are and the further the range obviously the more problamatic maintaining a practical kiling pattern is, but what i have found is this if you can maintain around a 85%+ pattern at 40yards and a 65% + pattern at 60 yards measured of lethal for use pellets with your factory tubes you probably wont gain anything much from the investment in aftermarket tubes, but if your %ages fall far short of this it will be possible to acchieve such patterns with good aftermarket tubes. Just what to buy is your choice myself i rate the terror chokes over anything else but Trulocks carlsons and briley and maybe a few more i have no experience of will do the job of acchieving suitable patterns at the sort ranges i mentioned above . If your shooting is typicaly close range decoying work then you may not see as much improvements with more open choked aftermarket chokes as you will the longer range tubes. Prices carlsons are in my opinion great vallue and are cheaper than brileys and just as good if not better at range brileys are good as are trulocks you can get most of these and other options from midway uk if they have them in stock but prices are higher than the states but what with shipping and handling customs charges its perhaps your best option. For a quick easy jump in to effective aftermarket steel chokes take a look at midways carlsons waterfowl set three chokes close mid and extended range and all about 110 quid + postage if i had no hard and fast preferences made on what tubes i favoured it is where i would look first, but me try and get terror 700s out of america, you will pay a hundred by the time you have got one here but buy a couple DS tubes and a optima tube all in the same package may save you a little its your choice.

Its gone far too fast for me this off season, i was trying to get a few loads with TSS shot worked up but i have only had a few hours on this so far with just two months left now its time to get motavated, because it will be here before you know it and then nothing will get done.

Well there is your answer for the 12ga escort obviously then the Beretta tubes are oversise enough at the lead in at the base of the tube to leave no step. But not relative here directly but any one reading this take note of what i said on the 20ga escort they are .635 not .615 as std sami spec sizes for nominal bore size, bear this in mind when buying chokes for them, a mobil choke that screws in could be a problem, on the 20ga buy Huglu compatable chokes these are to the escort size bore. Choke manufacturers list them as Huglu choke threads but i understand mobils will screw in be carefull.

Like i said the versamax is not on your list but it is without doubt the softest shooting (felt recoil) shotgun i have ever encountered and i just cant ever see how it is possible for it to jam i am at 1000 rounds in mine and counting never given a single problem. 17000 rounds and not cleaned on Remington media is claimed and i can believe it. Even if its not your brand choice look at it for how it works and i think you will buy it i did. http://www.youtube.com/watch?v=SJub_LUdxJk

Maxus is the better gun the inertia system on the Benelli is theoreticaly reliable and when used in laboratory clean conditions is quite dependable but the usual Benelli achiles heal the bolt spring eventualy shows its head and anyway the vinchi although very comfortable is still a kicker fancy stock or not the maxus is a soft shooter only out paced by the versamax on low felt recoil. Get the maxus in my opinion.

Berretas or benellis in 12ga that use mobil chokes are all over the place on bore diameter anything from .721 to .727 in my experience, and in the specs are normaly listed at .722 which is i supose berreta going on the average bore size in their lotery of churned out bore sizes. Now you need to take this in to account when working out if the mobil chokes will be safe to use in the escort or not. I have no idea what the nominal bore size is of a 12ga escort but the 20ga hatsan escort has a nominal bore size of .635 thats 20 though over the general usa bore size for 20ga of .615 so the escort 20ga is in fact backbored / overbored and is in fact an 18 bore not a 20. Now you need to establish the bore size on the escort and then measure the lead at base of the choke tube this must be larger than the bore if it is you are ok if not you need to rethink your plan. The 20ga hatsan is listed on the carlson choke tube website has utilising huglu choke tubes and yet the 12ga is down as a mobil compatable gun, so it could be the 12ga escort is indeed a small bored 12 like the mobil choked berretas, but you need to check this out before you use the gun.

What he said no problem i am inssured with footman james with a 1680cc marlin trials car, and a locost 7 with a kawasaki zx12 engine treated no different fron a car engined car of same capacity cheaper to tax than the zetec i took out of it originaly.

I notice Briley has changed its constriction and markings as made in reference on the thread on DHC, My IM invector 10 briley about three years old is .745 yet a mate got one off chris potter last year and its again marked IM but is .730 and did not pattern as well, he ended up buying a .720 terror choke and i sold his Briley for him. Terrors are a tight constriction and they have had a lot of bad press on the American sites but i have had mine five years in Browning Invector and put a lot through them with no issues, and i used a 720 in an SP10 over 8 years until last season when i sold off my SP10s again no issues. They are a little more expensive than Brileys and a little more complicated to get over here, but if SRM still have any left it would be worth the extra effort and time to get one if you can the .720 is about the perfect choke in the 10ga in my opinion. The Briley .745 is a good performer and with potter able to get them in within a few weeks personal importing one from the states is possible and may save a little cash, but these days not a lot gets past custons without being charged, and the 15 or 20 quid you might save seems hardly worth the hassle plus potter may just have one in stock he did when i got mine a few years ago. Ported chokes? I am no lover of ported chokes and avoid them, but having said that i am looking in to getting an Indian creek choke tube for a Berreta after seeing some patterns on an American forum these are not ported in the normal sense but slits and apparently pattern very well.

Thanks for that i will ring them .

Anyone on PW use or have any experience with these choke tubes.?

If you dont mind me asking, Do you have any idea just what thread type the Revo 28gas use i know most turks use Berreta / benelli mobil type threads, but some use rem choke thread, and i cant find any mention on the internet what Revos use, can you offer any advice please.

In ten gauge i dont use any more constriction in Brileys than .745 i have this in chokes marked IM. With the SRM terrors .720 and .705 are just that so given that are considerably tighter constriction are made a little better and have never had any issues with steel in these chokes even with F shot at 1600fps through the .705 .

I dont know about that if i were marketing director for Benneli or Berreta i would want my products promoted by what is currently close to the most popular show on American tv show at prime time slot regardless of if they were a bunch of rednecks or not.

Duck comander team have signed with mossberg should bring them a bit of money and mossberg a boost in publicity, and best of all it kicks Benneli right where it hurts, i bet they are seathing.

When you discharge the gun the shot will have some set back in the wad and you will get away with a little above the wad due to this, it will be ok.