Thread: 7mm08 down loading to reduce noise

I took my last deer a few weeks ago, an old fallow stag, at 36m with a 204gn cast HP from Rob Walker doing 960fps chronographed. So subsonic. Shoulder hit, dropped like a.stone. Shoot that load all day without muffs. Very very quiet. Used 6gn ICI Nobel Shotgun Powder No 78. Red Dot and AS50N are very similar. AP70N can also be used in that 6- 13gn charge range. 800x is excellent, 700x has been used by some but find good data for your application. Vihtavuori N32C Tin Star cowboy powder can also be used successfully if you can find some. No fillers required. At the upper charge levels you would expect 1400-1600 fps. Accuracy can diminish quickly with cast at the higher velocities. Pistol/Shotgun powders in rifle cases can spike pressure very quickly as max charge is reached - around 12-13gn
depending on case size etc. Work a load up carefully from 6-8 gn. Do not use fine ball powders for such loads, e.g. W260/H110. Best are coarse or large flake powders. Also can be troublesome to meter but once you have your load not hard to trickle batch charge 50 cases.

Trailboss is good if you can get some/stand the current prices.

If loading jacketed bullets for sub loads check during load dev that the bullet reliably exits the bore.