(20 March 2015, 16:49)Mortblanc Wrote: Not firing slugs through a full choke barrel is another of the internet myths about the shotgun. One of the most accurate slug shooters I ever owned was a Browning A5 with an extremely full choke.
The slugs are lead, they squeeze through the choke with no problem. That is why you use lead!
Perhaps you should share your findings with Benelli
http://www.benelliusa.com/customer-service/faq
Quote:Which chokes are recommended for slugs?
These chokes are recommended for slugs:
4 notches = Improved cylinder
5 notches = Cylinder
A cylinder choke is recommended for shooting rifled slugs in a smooth-bore barrel. Sabot slugs should only be shot through our fully-rifled slug barrels.
It is not safe to shoot slugs through chokes tighter than those listed here.
or perhaps to a company that specializes in chokes;
http://www.choketube.com/choke-tube-prod...ubes&mf=10
Quote:Slugs, sabots, and rifled slugs are not to be used in any choke constriction tighter than Improved Cylinder.
You may well have had good results with some slugs, "rifled" types conform to chokes quite well, but not all slugs are like that. Something as solid as a round lead ball in a plastic wad will easily plug a choked barrel or damage it.
(20 March 2015, 16:49)Mortblanc Wrote: And those chokes up to 1/2 having the most effect??? Yes, they are much better than straight cylinder bore, but I am finding that what is labeled on the barrel is not what you are getting on the target. Not a single choke tube I have, in either of three different brands, gave the pellet count it claimed.
The 1/2 choke labels all gave 1/4 choke patterns (55%) and the full choke labels gave 1/2 choke or less (58-60%). My 1/4 choke barely gave 40% pattern.
What is stamped on the barrel or pressed into the tube means nothing, you have to shoot the patterns and count the pellets. Choke is measured on the target, not by the diameter of the muzzle. The "in general the constriction of .006 gives bla, bla bla..." means absolutely nothing!
The cartridge itself has a huge effect, but the manufacturers can't know what you're using, so they label based on the physical dimensions of the choke - they have no choice. A cheap fibre wad cartridge loaded with soft lead shot will give a wider pattern than a quality plastic wad cartridge loaded with round, even, hardened shot. Even so, what I wrote about "diminishing returns" is correct, the first degrees of choke have more effect than the tightest, I'm not saying that 1/2 choke will throw a tighter pattern than full choke, just that the difference between no choke and 1/2 choke is more pronounced than the difference between 1/2 and full. If this wasn't the case then we could just keep tightening the choke and getting tighter and tighter patterns - but this doesn't work, tight chokes damage the shot more than open chokes and damaged shot fly out of the pattern.
Another problem with tight chokes is that the shot is less evenly distributed, they tend to throw a dense pattern in the middle and less around the outside - this is not useful unless you are an expert shot.
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