While you can simulate the sight picture of longer ranges, actually shooting at 25m does not accurately simulate shooting at 50m, just as shooting at 500m does not simulate shooting at 1000m. If it did, all competitions could be shot in a one-metre box
I like to shoot .22LR at long ranges because the loss of accuracy and increased trajectory and wind effects can reasonably simulate shooting centrefires at even longer distances, but it is only simulating it. Shooting .22LR at 200m, 300m, 400m, or 500m can teach you a lot about about shooting centrefire at 400m, 600m, 800m, or 1000m, but it can't replace the actual experience you gain from shooting centrefire at those distances. But shooting .22LR at 50m teaches you very, very little about shooting .22LR at 100m, or 200m, or 500m, despite scaling the targets to look correct.
A 25m range will let you become very good at 25m, not at 50m, that can only come from practicing at 50m.
rc42 wrote:Shooting at 25m and 50m isn't much different, obviously, the targets appear half the size when twice the distance away but you can print your own half size targets to simulate that, the only complication will be if you are using a 6 O'clock hold as it will be wrong on the smaller target at 25 so you'll group high. Obviously, group sizes will normally be about twice as large at 50m but a scaled target will provide equivalent scoring.
The bullet drop at 50m won't be much for a pistol sighted at 25m, maybe an inch or so but you should be prepared for that if you ever compete at a longer range, otherwise a 25m range will provide all of the practice you need to get really good.
Are there any other ranges that you can join and either move your membership or shoot at both?