I want to fly bullets, and I want to realize the movement of the bullets that hit each other stick together.

using System.Collections;
using System.Collections.General;
using UnityEngine;

public class StickBall —MonoBehavior
{
    public float force;
    public float torque;
    private CharacterJoint myjoin;
    public void OnCollisionEnter (Collision other)
    {

        if(other.gameObject.tag=="Bullet")
        {
            if(myjoint==null)
            {
                myjoint=gameObject.AddComponent<CharacterJoint>();
                myjoint.connectedBody=other.rigidbody;

                myjoint.breakForce=force;
                myjoint.breakTorque=torque;
                print("breakForce=\n" + gameObject.GetComponent<CharacterJoint>().breakForce);
                print("breakTorque=\n" + gameObject.GetComponent<CharacterJoint>().breakTorque);
            }
        }
    }
}