I know you can't with "self defense" time frames in mind.
I’m glad you’re bringing this up, because it’s showing your lack of knowledge about home defense.
Around 2008 I knew an older gentleman who was a large firearms collector. He was a competitive shooter and shot at a local range weekly. The guy was a very good shooter. He lived with his daughter in their basement where he kept a majority of his collection. I know he specifically slept with a loaded pistol (I cannot recollect what it was) laying on his bedside table.
A few meth heads learned he had a large collection of firearms and kicked the door of his basement in one night. He had no time to even get to his pistol before they were beating the ever living fuck out of this man. He lived, but he spent a good amount of time in the hospital and lost a good chunk of his collection.
The moral of the story is that your split times on the range don’t fucking matter in a home defense shooting. If you are not buying yourself enough time from when the intruder first kicks your door to when they’re standing next to your bed, you’re fucked. Modern solid core doors can be defeated with one good solid kick by driving the dead bolt straight through the jamb and is how most home invasions occur.
I urge everyone here to stand at any entry point in your home and SPRINT to your bedroom. This is the amount of time you have IF you wake up from the first kick. Anti-kick plates that tie the jamb together with one piece of steel, reinforced hinges, and door stops all help give you TIME so that you can meet an intruder from a place of ambush at your choosing.
You don’t need a $1500 AR for home defense. A shotgun or a cheap AR will do just fine. Just practice and make sure your gun reliably feeds the defensive ammo of your choice. Spend your savings on actually protecting your home and the weapons that will be in your home when you’re away.