download:click ctrl+f and search for <Name>WEAPON_REPEATER_WINCHESTER</Name> on weapons.ymt and delete and write this script 


script:
          <Name>WEAPON_REPEATER_WINCHESTER</Name>
          <Model />
          <SwapClipSetHash />
          <GripClipSetHash />
          <GripClipHash />
          <Audio>0x9DCA4790</Audio>
          <Slot>0x214D9126</Slot>
          <FireType>BULLET</FireType>
          <Group>GROUP_REPEATER</Group>
          <WeaponType>Longarm</WeaponType>
          <SwapWeaponType>Weapon_Rifle</SwapWeaponType>
          <Score value="560" />
          <UNK_MEMBER_0x9A862BD2 value="-1" />
          <AnimationLookupHash />
          <DamageModes>
            <Item>
              <AmmoInfo>AMMO_REPEATER</AmmoInfo>
              <Name>DM_REPEATER</Name>
              <UNK_MEMBER_0x1F5DA5F4 value="0" />
              <Damage value="61.06000000" />
              <DamageType>BULLET</DamageType>
              <Penetration value="5.40000000" />
              <Explosion>
                <Default>EXP_TAG_DONTCARE</Default>
                <HitCar>EXP_TAG_DONTCARE</HitCar>
                <HitTruck>EXP_TAG_DONTCARE</HitTruck>
                <HitBike>EXP_TAG_DONTCARE</HitBike>
                <HitBoat>EXP_TAG_DONTCARE</HitBoat>
                <HitPlane>EXP_TAG_DONTCARE</HitPlane>
              </Explosion>
              <AccuracyInfo />
              <DamageFallOffInfo />
              <MeleeExecutionDismemberment value="-1.00000000" />
              <DismembermentRanges />
              <ImpulseMultiplier value="-1.00000000" />
              <NmShotTuningSet />
              <RecoilShakeHash />
              <RecoilShakeHashFirstPerson />
              <RecoilShakeAmplitude value="-1.00000000" />
              <RecoilShakeAmplitudeFirstPerson value="-1.00000000" />
              <PlayerDamagedByPlayerModifier value="-1.00000000" />
            </Item>
            <Item>
              <AmmoInfo>AMMO_REPEATER_HIGH_VELOCITY</AmmoInfo>
              <Name>DM_AMMO_HIGH_VELOCITY</Name>
              <UNK_MEMBER_0x1F5DA5F4 value="0" />
              <Damage value="65.32000000" />
              <DamageType>BULLET</DamageType>
              <Penetration value="7.40000000" />
              <Explosion>
                <Default>EXP_TAG_DONTCARE</Default>
                <HitCar>EXP_TAG_DONTCARE</HitCar>
                <HitTruck>EXP_TAG_DONTCARE</HitTruck>
                <HitBike>EXP_TAG_DONTCARE</HitBike>
                <HitBoat>EXP_TAG_DONTCARE</HitBoat>
                <HitPlane>EXP_TAG_DONTCARE</HitPlane>
              </Explosion>
              <AccuracyInfo />
              <DamageFallOffInfo>0x34274532</DamageFallOffInfo>
              <MeleeExecutionDismemberment value="-1.00000000" />
              <DismembermentRanges />
              <ImpulseMultiplier value="-1.00000000" />
              <NmShotTuningSet />
              <RecoilShakeHash />
              <RecoilShakeHashFirstPerson />
              <RecoilShakeAmplitude value="-1.00000000" />
              <RecoilShakeAmplitudeFirstPerson value="-1.00000000" />
              <PlayerDamagedByPlayerModifier value="-1.00000000" />
            </Item>
            <Item>
              <AmmoInfo>AMMO_REPEATER_SPLIT_POINT</AmmoInfo>
              <Name>DM_AMMO_SPLIT_POINT</Name>
              <UNK_MEMBER_0x1F5DA5F4 value="0" />
              <Damage value="69.58000000" />
              <DamageType>BULLET</DamageType>
              <Penetration value="5.40000000" />
              <Explosion>
                <Default>EXP_TAG_DONTCARE</Default>
                <HitCar>EXP_TAG_DONTCARE</HitCar>
                <HitTruck>EXP_TAG_DONTCARE</HitTruck>
                <HitBike>EXP_TAG_DONTCARE</HitBike>
                <HitBoat>EXP_TAG_DONTCARE</HitBoat>
                <HitPlane>EXP_TAG_DONTCARE</HitPlane>
              </Explosion>
              <AccuracyInfo />
              <DamageFallOffInfo />
              <MeleeExecutionDismemberment value="-1.00000000" />
              <DismembermentRanges />
              <ImpulseMultiplier value="-1.00000000" />
              <NmShotTuningSet />
              <RecoilShakeHash />
              <RecoilShakeHashFirstPerson />
              <RecoilShakeAmplitude value="-1.00000000" />
              <RecoilShakeAmplitudeFirstPerson value="-1.00000000" />
              <PlayerDamagedByPlayerModifier value="-1.00000000" />
            </Item>
            <Item>
              <AmmoInfo>AMMO_REPEATER_EXPRESS</AmmoInfo>
              <Name>DM_AMMO_EXPRESS</Name>
              <UNK_MEMBER_0x1F5DA5F4 value="0" />
              <Damage value="73.84000000" />
              <DamageType>BULLET</DamageType>
              <Penetration value="3.00000000" />
              <Explosion>
                <Default>EXP_TAG_DONTCARE</Default>
                <HitCar>EXP_TAG_DONTCARE</HitCar>
                <HitTruck>EXP_TAG_DONTCARE</HitTruck>
                <HitBike>EXP_TAG_DONTCARE</HitBike>
                <HitBoat>EXP_TAG_DONTCARE</HitBoat>
                <HitPlane>EXP_TAG_DONTCARE</HitPlane>
              </Explosion>
              <AccuracyInfo />
              <DamageFallOffInfo />
              <MeleeExecutionDismemberment value="-1.00000000" />
              <DismembermentRanges />
              <ImpulseMultiplier value="-1.00000000" />
              <NmShotTuningSet />
              <RecoilShakeHash />
              <RecoilShakeHashFirstPerson />
              <RecoilShakeAmplitude value="-1.00000000" />
              <RecoilShakeAmplitudeFirstPerson value="-1.00000000" />
              <PlayerDamagedByPlayerModifier value="-1.00000000" />
            </Item>
            <Item>
              <AmmoInfo>AMMO_REPEATER_EXPRESS_EXPLOSIVE</AmmoInfo>
              <Name>DM_AMMO_EXPRESS_EXPLOSIVE</Name>
              <UNK_MEMBER_0x1F5DA5F4 value="0" />
              <Damage value="170.40000000" />
              <DamageType>EXPLOSIVE</DamageType>
              <Penetration value="0.00000000" />
              <Explosion>
                <Default>EXP_TAG_BULLET</Default>
                <HitCar>EXP_TAG_DONTCARE</HitCar>
                <HitTruck>EXP_TAG_DONTCARE</HitTruck>
                <HitBike>EXP_TAG_DONTCARE</HitBike>
                <HitBoat>EXP_TAG_DONTCARE</HitBoat>
                <HitPlane>EXP_TAG_DONTCARE</HitPlane>
              </Explosion>
              <AccuracyInfo />
              <DamageFallOffInfo />
              <MeleeExecutionDismemberment value="-1.00000000" />
              <DismembermentRanges />
              <ImpulseMultiplier value="-1.00000000" />
              <NmShotTuningSet />
              <RecoilShakeHash />
              <RecoilShakeHashFirstPerson />
              <RecoilShakeAmplitude value="-1.00000000" />
              <RecoilShakeAmplitudeFirstPerson value="-1.00000000" />
              <PlayerDamagedByPlayerModifier value="-1.00000000" />
            </Item>
          </DamageModes>
          <AimingInfo>0x447C7736</AimingInfo>
          <UNK_MEMBER_0x6D43951C>
            <Item>
              <Type>0x38ED1366</Type>
              <Size value="10" />