I would like to try my 14" 7TCU this year for whitetails. I plan on limiting the range to 75 yards. I have some 130 grain Sierra SSP bullets on hand. Any load suggestions? Thanks!

This is a case of not having enough velocity to open the wrong bullets. Best to call Sierra and ask about the 130. I shot a deer with my 7R which has more power then the TCU using the 139 gr Hornady. It did not open and there was zero blood sign. I found the deer by walking circles.
I switched to the 120 gr bullet but have not tried it again.
You will give up penetration by having the bullet expand but it should do the job in the boiler room.

Ditto on the bullets. I have a rechambered 7TCU, now a 7JDJ in ten inch length. The 120 Sierra was my choice based on Bob Milek and his work with the 7/30Waters and 7BR. I am working on a similar problem with a 2" 38Spcl and a Hollow Point that will expand at 750Fps. The flat nose bullet designed for the 7/30 Waters should work OK.

Estacado

I also have 120 grain v-max bullets on hand.

I have used the 120 Gr.Nozler Ballistic Tip in both the 7 MM TCU and 7-30 Waters on Whitetails,Mulies and Speed Goats.A good 200yd+ Range on them.In the TCU I was using 27.5 grs. of N133 for 2400FPS and the Waters,35.6 grs of WW748 for almost identical velocity.The Ballistic tip will reliably open up down to 1800 FPS.Those are max loads in my TC. OB

I think the Vmax might be a better choice. I shoot 120 gr nosler ballistic tips and RL 15 from my 7x30 waters.