Range rules are set by the range and I have seen rules change range to range. For example here are the rules for a local to me indoor range:
Regulations:
Range Regulations:
1. We reserve the right to deny use of the range to anyone appearing to be impaired by Drugs, Alcohol or otherwise.
2. Anyone under the age of 21 must be accompanied by someone 21 or older.
3. No One is permitted down range at any time for any reason.
4.No smoking, food, drink or chewing gum on range.
5. No more than 2 shooters are permitted in a stall at one time.
6. You must shoot only at your own target, No cross stall shooting
permitted.
7. No shooting at carriers, side walls or items on range floor.
8. Small targets must be on cardboard target head level or below.
9. Shooter may only fire one gun at a time.
10. Do not throw live or defective ammo down range. Please turn it in at the counter for disposal.
11.PLEASE PLACE ALL TRASH IN TRASH CANS PROVIDED.
Safety Regulations:
1. Hearing & eye protection must be worn at all times while on the range.
2. Keep muzzle pointed down range at all times.
3. When taking out or putting away firearms, keep muzzle pointed in safe direction.
4. Keep you finger off the trigger until you are ready to shoot.
5. Handle all firearms like they are loaded at all times. (Every gun is “Always” loaded.)
6. Use only the correct ammunition for your gun.
7. Be courteous and mindful of your fellow shooters’ safety.
Pistol, Rifle and Shotgun Regulations:
1.We reserve the right to inspect all cases & ammo.
2.All rifle ammo will be inspected. (Soft point or lead round nose only. No steel core, armor piercing or full metal jackets.)
3. All rifle targets must be shot at 25 yards. (Full length of range.)
4.All rifles and full stock shotguns must be shot from shoulder or bench rested.
5. High power rifles may be shot with soft point or hollow point ammo and 1 round in magazine at a time. Target must be back the full 75 feet.
6. No full auto high power rifle.
7. No steel shot or solid copper slugs.
8. No rapid fire with pistol grip shotguns.
9. Pistol grip shotguns – buck shot or personal defense rounds only!
10. No picking up brass except for your own.
Hand loaded ammunition is permissible but I have seen them use magnets to check for steel jackets or cores on bullets. Steel jackets and cores cause a few problems in addition to tearing up the backstops, sparks have been known to ignite un burned powder downrange.
Something else I have observed at ranges allowing public shooting is when I walk up into the stalls I see bullet holes in the side dividers, the overhead and even in the stall tables. Makes you wonder how they got there and where those bullets finally stopped?
Anyway, it is not unusual for some indoor ranges to try and ban the use of hand loads. It's their sandbox so their rules. You can either play or leave.
Ron