I notice a few people come here for load data for the recently available TR140 powder and I am often asked how it differs from N140. Now I was under the impression it was the same stuff however it isn’t. It is close but not the same so those of you looking to swap from N140 to TR140 take care and do not just jump in with your trusted N140 load.
I would suggest dropping down at least a couple of grains and move up in fairly coarse steps and then tighten up for the last .8 grains in .1 or .2 grain steps and keep an eye out for the normal pressure signs, certainly if you experience heavy bolt lift drop back half a grain and re-access what you are doing. I would hope those of you reading this Journal are both experienced shooters and re-loaders. I recently received some data including basic reloading information for the TR140 from Mik at Dolphin Rifles and I am sure he will not mind me posting this.
I have a bit more on the powder if anyone is interested.