Recent content by Don416

Didn’t you have to open the bolt face on the Siam action for the WSM? I think the case head is 0.535”, just over the standard magnum 0.532”. Regular mausers are 0.473” head diameter, not familiar with Siam mauser dimensions.

I think the Taylor is a better choice after doing the 416WSM but don’t regret it. 458Win mag cases should be easy to get and form to Taylors and there is lots of published data.

With 350gn Speer hotcore 70gn of AR2206H gave 2417fps Also tried some 416WSM 400 gr Hornady RN with 57gr IMR3031 with some room for more, again no chrony but no pressure signs. Whacking 10” gong at 100yds no problem.

Fired some cartridges with Barnes 350gr TTSX, Winchester 748 powder today, 62, 63, 64gr slightly compressed. No time for Chrony info, just checked for pressure signs, all ok, shot great.

Barrel is just under 20”. With Speer 350 I could squeak a little more 4895 in the case but 3031 is maxed. Most on the site are using Accurate 2520 but I haven’t been able to get any. I’m happy w/the Speer bullets, just want to juice up the Barnes 350gr TTSX a little more. Think I can get some...

Will have to see how much 2520 I can fit in my WSM case when I try it. TTSX seems to shoot well with everything.

None yet, but I’ve maxed out those powders and am happy with the Speer loads. Have to see what else I can try for the 350gr TTSX. Wanna hit 2250fps. Availability limited here. I even tried H4350 as I have lots on hand but only got 1750fps slightly compressed load.

Thanks but the Thread is about the 350gr TTSX in 416. Haven’t been able to find Accurate 2520 yet but want to try it.

Range Trip Barnes 350gr TTSX, Cartridge 416WSM, IMR4895-56gr Compressed, 2113fps. Tried H4350 at 55gr Compressed no good, dirty unburnt powder, 1756fps.

Next Range Trip w/ chronograph best results, all Rem 9-1/2 mag primers: I) Speer 350gr SP, IMR 3031- 62gr, 2240fps, Cart. L. 2.860”. Ii) Speer 350gr SP, IMR 4895-65gr, 2229fps, OACL 2.860”. Iii) Barnes 350gr TTSX, IMR4895-56gr Compressed 2113fps, OACL 2.870”.

Emailed Barnes for required velocities to expand on the Barnes TTSX. Barnes rep,” An impact velocity of 1700 fps will get you about 1.7x expansion of the bullet’s original diameter. If 2x expansion is desired, which we suggest, then add approximately 100-200 fps.” Choreographed 350gr TTSX, 54gr...

Thanks, gonna try Hodgden or IMR 4895 next.

First Range Trip w/chronograph, not what I expected: I) Speer 350gr HC, 55gr IMR3031 1840fps. Ii) Hornady 400gr RN SP, 54gr IMR3031, 1750fps. Iii) Barnes 350gr TTSX, IMR 3031 54gr, 2000fps. Not sure if chrony is ok, should have checked it against a published load I guess? How do you calibrate...

I forgot to mention the other Cartridge combo on the right was the Speer 350gr HC, same weight big length difference in Bullets. Both loaded approximately to the same cartridge length. Borrowed a chronograph just gotta get to the range now to get more data.

I don’t think any bullet can really resist brush, I hit this deer in the neck while moving with a 0.416”-350gr Speer HC at 35yrds through brush aiming at his chest.