The 257 Roberts 100 gr E-Tip Tested

JD338

Range Officer
Staff member
Nov 4, 2004
25,525
9,521
I quick tested the 100 gr E-Tip in my M700 Classic 257 Roberts and can share the following data with everyone.
Oehler35.jpg

IMR 4350 loaded to a Max charge with 41.5 grs, R-P case and Federal GM210M primers. Avg MV 2779 fps, ES 40, SD 20. Accuracy was 2.05".
257Roberts100grE-Tipb.jpg

RL 19 loaded to a Max charge with 46.0 grs gave an Avg MV 3053 fps, ES 38, SD 20. Accuracy was 1.772". The COL was 2.900" and I will have to work with this to improve accuracy.
257Roberts100grE-Tipa.jpg

I shot into water jugs at 100 yds, MV was 3042 fps and the bullet was recovered sticking out the back side of jug #5.
257Roberts100grE-Tipc.jpg

257Roberts100grE-Tipd.jpg

257Roberts100grE-Tipe.jpg

The recovered bullet weighed 98.7 grs and measured .584" diameter and the length is .635".

I will update with accuracy improvements.

JD338
 
That is excellent performance for that little ETip. That RL19 loads sounds like a deer killer for a long ways out! Scotty
 
JD,

Quite the performance on that little bullet. I have yet to shoot any of the E-tips. I know you're a big RL-19 fan, but to keep close to that same burn rate, some N-140 might be a good one to try ?
 
Great report. I can't wait to get some of the 100 grain E-tips. Scotty is right. The RL19 load looks to hold real promise.
 
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