375 snipetac

[Geno C]

I’m finally starting to get loading in formed brass for my 375 snipetac. I shot last season while forming brass and it shot really well.

Forming load:
Bertram brass
215M primers
377 cutting edge bullet
130.0gr of Retumbo
2957fps at the beginning
2996fps by the end of 200 rounds
Sd stayed in the 3-4fps range ever time I checked speed

So far I’ve only shot on of each charge over the magnetospeed in formed brass to find where a decent likelihood of a node would be.

215M primers
350 Badlands Precision SICBM bullet
H50bmg powder
138gr-2844
139gr-2906
140gr-2948
141gr-2957
142gr-2971
144gr-3011
145gr-3033
146gr-3052
147gr-3099
148gr-3145
149gr-3135
150gr-3159

At 144gr I got a slight ejector mark but extraction stayed effortless so I kept going. Even at the 150gr load, it was the same. I would imagine I might be able to get 100fps or so more but I’m going to see what I can find in the 148-150gr range for now.

 

[germanlongbow]

Going to get warm this summer, might find that pressure mark sooner than expected.

 

[Geno C]

You know I don’t shoot in the summer

This is all done out of my basement at 68 degrees. I figure that puts me in a good starting place. I have no choice but to do the rest of load development in the cold though.

 

[Geno C]

Here is how the bullet is seated and how full the case is with 150gr of powder. Hoping to get the next step done this week yet

 

[germanlongbow]

Looks good.

 

[Geno C]

Pretty well 100% case fill. I like it!

 

[Terry]

I'm excited!

I look forward to long range reports.

 

[Geno C]

Had a little problem setting targets today so longer range old testing has to wait

 

[cmillard]

Nice truck. Nice bullet too

 

[Geno C]

Thanks. Another 3” of snow has me moving it all day instead of shooting again. I swear someone is trying to get me to not shoot this thing!

 

[Geno C]

Settled on 149.5gr of H50bmg. I had to go further into the lands than I though I would to get these bullets to shoot well but they’re doing good now.

3152fps 6fps for the sd.

 

[Geno C]

Forgot to update this. She’s shooting pretty good. Shot a personal record in a match of 3010. Headed out to spearpoint for the shoot on the 20th to try it again

 

[Terry]

View attachment 1184322 View attachment 1184321 Forgot to update this. She’s shooting pretty good. Shot a personal record in a match of 3010. Headed out to spearpoint for the shoot on the 20th to try it again

Congratulations on the personal record!

 

[FeMan]

Good shooting!!