The most common and most likely answer to this crossword clue is the 6 letter word RANGES
I've seen this crossword clue in The Daily Telegraph
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More clues leading to the result RANGES
Buddy explains!

The straight part
We know that "They’re used for shooting/varieties of products" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case they’re used for shooting/varieties of products = ranges.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does RANGES mean?
RANGES noun- A line or series of mountains, buildings, etc.
- A fireplace; a fire or other cooking apparatus; now specifically, a large cooking stove with many hotplates.
- Selection, array.
- An area for practicing shooting at targets.
- An area for military training or equipment testing.
- The distance from a person or sensor to an object, target, emanation, or event.
- Maximum distance of capability (of a weapon, radio, detector, fuel supply, etc.).
- An area of open, often unfenced, grazing land.
- Extent or space taken in by anything excursive; compass or extent of excursion; reach; scope.
- The set of values (points) which a function can obtain.
- The length of the smallest interval which contains all the data in a sample; the difference between the largest and smallest observations in the sample.
- The defensive area that a player can cover.
- The scale of all the tones a voice or an instrument can produce.
- The geographical area or zone where a species is normally naturally found.
- A sequential list of values specified by an iterator.
- An aggregate of individuals in one rank or degree; an order; a class.
- The step of a ladder; a rung.
- A bolting sieve to sift meal.
- A wandering or roving; a going to and fro; an excursion; a ramble; an expedition.
- In the public land system, a row or line of townships lying between two succession meridian lines six miles apart.
- The scope of something, the extent that something covers or includes.
- The variety of roles that an actor can play in a satisfactory way.
- To travel over (an area, etc); to roam, wander.
- To rove over or through.
- To exercise the power of something over something else; to cause to submit to, over.
- To bring (something) into a specified position or relationship (especially, of opposition) with something else.
- (followed by over) Of a variable, to be able to take any of the values in a specified range.
- To classify.
- To form a line or a row.
- To be placed in order; to be ranked; to admit of arrangement or classification; to rank.
- To set in a row, or in rows; to place in a regular line or lines, or in ranks; to dispose in the proper order.
- To place among others in a line, row, or order, as in the ranks of an army; usually, reflexively and figuratively, to espouse a cause, to join a party, etc.
- To be native to, or live in, a certain district or region.
- To separate into parts; to sift.
- To sail or pass in a direction parallel to or near.
- Of a player, to travel a significant distance for a defensive play.