G4ZZ

Sorry I’ve only now spotted your reply. It was a Shooting Chrony chronograph, the rifle is a Tikka T3 Lite Stainless with 20” barrel.

I should have tried a group but unfortunately didn’t, I’ll have to knock a few more up and wait for a wind free day yet again.

I will try a little higher as long as accuracy isn’t affected, my cases and primers aren’t damaged in any way with the above loads.

It’s the N133 load for the 40grn Vmax off of the Vihtavuori site I’ve used as my starting point.

A very kind gentleman took my out today on a bit of land of his to use his chrono and these were the results. 25.4 Ccb 3488 3571 3550 3531 25.2 3547 3565 3516 25.6 3640 3675 3680

I had another go today as there was no wind again I went up to 25.4 and this is what happened

Well I finally made some loads up and gave them a go. here are the results using: Norma cases, N133, Br4 primers and 39grn Sierra Blitzking.

Once I have made some rounds up and found a consistent group I shall have to borrow a chrono to see how the rounds are performing. I just hope the Hornady brass will be ok for the time being.

Hi Bob I have Tikka T3 lite 20 inch sporter so will no doubt loose a hell of a lot of velocity. Funny you mention the BR4 primers as that’s what I have but as far as brass goes I can only get Hornady

Thanks Bob Any idea on what Fps range might be? I would have bought N135 for which I have data for but there wasn't any available.

Hi all I’m new to the .204 and reloading but not new to rifles. Has anyone by any chance got any load data for Vihtavuori N133 with 39grn blitzking please.If not I was going to go by what is on the Vihtavuori app for the 40grn vmax and N133 would that be safe?