Chrono results with new Bar-Sto .40 barrel in G29: faster than Sig 229.

[Greybeard]

Did some chrono work last night that some of y'all might find of interest.

Buddy who handloads carries a Sig 229 in .40. When I laid the barrels side by side a few weeks ago, his barrel was about 1/10" longer than barrel(s) for my new 29.

.40 180 grain handloads
Sig 229: 934 fps
G29/w Bar-Sto .40: 952 fps

.40 Speer Gold Dot, 165 grain
Sig 229: 1,116 fps
G29/w Bar-Sto .40: 1,142 fps

Just for a "same day comparision", I put Glock 10mm barrel back in the gun and ran 5 Double Tap Gold Dot 10mm 165s thru it. 1,279 fps.

The bottom line for last night's little session: (1) My "40 caliber Model 29" is a little faster than Buddy's "longer" Sig 229. (2) The Speer .40 loads out of the Bar-Sto barrel are only 137 fps slower than DT 10mm loads out of stock Glock barrel. And not nearly as snappy on the back side.

 

[Sean Smith]

Shorter barrels tend to negate the advantages of more powerful cartridges like 10mm compared to their weaker breathren. The more barrel you have, the bigger the lead 10mm gets over .40 S&W.

 

[Greybeard]

Yep, on "want next list" for hunting purposes is a 5.4" Bar-Sto barrel in 10mm. Or maybe by another mfgr. fps expected to somewhat exceed stock barrel in G20s. Pretty pleased tho with results of .40s for practice and common carry purposes.