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∙ 9y agoTo a small degree- maybe. The 1 more inch of barrel gives a higher speed to the bullet (more energy) and has a longer sight radius- distance between front and rear sights. But when fired from a machine rest there is very little difference in accuracy.
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∙ 9y agoOn the actual military weapons (whether they have the M4 profile barrel or the government profile barrel), the barrel length is 14.5 inches. On civilian "M-forgeries", a 16 inch barrel is more commonplace, although the 14.5 inch barrels can be found on the civil market, provided that they are equipped with a permanently mounted flash suppressor or muzzle brake of a sort which brings the overall barrel length to 16".
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You have a Baikal Model IJ-18 that was imported from the Soviet Union. If it has a 26 inch barrel it has no choke, a 28 inch barrel has a modified choke, and the 30 inch has a full choke. It is worth about $100 in excellent shape.
Six inch barrles were built after 1978, I think. Sorry I can't be more help!
No more than 225 USD
25 yds for both. From a 2 inch barrel 25 yds is done with little difficulty with both. The real answer comes down to the powder charge and barrel length. 357 has more powder so has a flatter trajectory and a bit more range. A 4 inch barrel with a hot load and a heavy bullet 158 - 200 grain in .38 or .357 can reach out to 75 - 150 yds. Longer barrel add 25 yds for each inch over 4 inchs up to 8 inches. After that it just runs out of steam.
Depends. For long range shooting, you're probably not going to find one off-the-shelf with the 22 or 24 inch barrel. You can still reach out and touch something at 300 yards or more with a 16 inch barrel. If you want it to be as "authentic" of an M4 as possible, then you'd want a 14.5 inch barrel with a permanently pinned and welded flash suppressor long enough to bring the barrel length to 16 inches.
Really doesnt matter which model, I guess. No more than $200.
This would be an early H&R shotgun from 1905-1940, or thereabouts. The 36" barrel makes it more interesting.
Requires professional appraisal. If factory, 5k or more. If not factory, 100-600 USD
The longest rifled barrel is probably the US Navy 16 inch rifles mounted on battleships-with barrels 66 feet long. Land based- the M65 Atomic cannon- with a 42'9" barrel. For shoulder arms, many muzzeloading black powder rifles used barrels in the 46 to 48 inch range. The Barrett .50 cal sniper rifle has a 29 inch barrel- and most civilian sporting rifles are 26 inches or shorter. Longer does not always mean better or more powerful.
There is no "Standard" choke. A5's could be purchased with one of many different chokes, however, the more common chokes on a 28" barrel were Full and Modified