Ramshot TAC in 243 Loads ??

[muskrat30]

I recently bought some TAC powder to try out. The plan is mainly for 223 & some 308. It is advertised for small to medium rifles with a burn rate right between H335 & H4895. The company puts out very little loading data. I know their web site has a little, as does my latest Sierra manual. The data is for the 223,22-250,7mm-08,308 & other similiar rounds. I have not found any for the 243.

My question is this; though not primarily a 243 powder for me, is there data available or is there a safe & proven way to interpolate data to develope a safe load? I usually stay in the mid range & compare several manuals on reloading and know the word 'interpolate' usually does not sit well with reloaders.

I can just use some 3031 & H4895 for the 243 & the TAC in the 223 & 308. I thought that with similiar rounds listed above & below the 243 a safe load must exist.