Load information for 7mmTCU using SR4759

[IHMSA80x80]

I've used 15 grains of SR-4759 with a 150 grain bullet in my 10" 7 TCU for years. Works great.

This is what I have been using ad it is awesome!! Thanks to Dean.

Mike

You're welcome, Mike!

[Hosspower]

I have 139 grain 7mm bullets. Would you run the same charge of 15 grains SR-4759?

[IHMSA80x80]

Yes I would. I've also used that for my 140 grain bullets. Should have said that in the original post.

[borregos]

Well, I loaded up a bunch of rounds using H322, IMR4895, W748 and SR4759 with a 150gr Winchester plain base projectile and headed to the range.
Best result at 50 yards (indoors) came from a load of 28.1gr of W748. Will try this out at 200 yards as soon as the weather is a bit kinder up here!

[260 Striker]

Sounds like a good load. I used 748 years ago in a 30-30 TC and on a hot day I would get vertical stringing on the rams. By the tenth ram I was shooting way high. Never had that problem with other powders in the 30-30 so I suspect 748 was more temperature sensitive. Just something to keep an eye on.

[borregos]

Sounds like a good load. I used 748 years ago in a 30-30 TC and on a hot day I would get vertical stringing on the rams. By the tenth ram I was shooting way high. Never had that problem with other powders in the 30-30 so I suspect 748 was more temperature sensitive. Just something to keep an eye on.

Thanks for the tip, will watch for that!

[Noahspawpaw0801]

Suggest you check with Sierra bullets for Loading data. They know what they are doing and they support IHMSA.