I put Buffalo Bore in a compact polymer 40. Why, because I am crazy!

[mesinge2]

I shot Buffalo Bore 200 grain OUTDOORSMAN Std Pressure Hard Cast Lead-Flat Nose with Low Flash powder with a velocity of 1,000 fps and Buffalo Bore 180 grain +P JHP with a velocity of 1,100 fps in both my full size M&P-40 and my compact M&P-40c. The standard pressure 200 grain round had, at least to me, a higher perceived recoil than the +P 180 grain round. As a matter of fact, the 200 grain had so much recoil in my compact that my first shot was shockingly low due to anticipation. And while attempting to compensate for recoil I shot a vertical string with the 200 grain ammo. I should have used two targets like the full size video but I didn't. :facepalm: But you can see the original grouping of the 180 grain+P load and its a nice group before the crazy 200 grain load.

Personally though, I think I shot pretty well as these are the small shoot-n-c targets.

But I will say: I WILL NOT BE USING THE 200 GRAIN ROUNDS AGAIN!

Here is the Full size: The first magazine is Buffalo Bore 200 grain OUTDOORSMAN Std Pressure Hard Cast Flat Nose Low Flash powder with a velocity of 1,000 fps. The second magazine is Buffalo Bore 180 grain +P JHP with a velocity of 1,100 fps.

VIDEO: .40 S&W M&P-40 Full Size with Buffalo Bore ammo

Here is the compact: The first magazine is Buffalo Bore 180 grain +P JHP with a velocity of 1,100 fps. The second magazine is Buffalo Bore 200 grain OUTDOORSMAN Std Pressure Hard Cast Flat Nose Low Flash powder with a velocity of 1,000 fps. I threw my first shot with the 200 grain loads. I was not ready for the recoil of the 200 grain round in the compact.

VIDEO: .40 S&W M&P-40 Compact with Buffalo Bore

Also, a warning for the Glock shooters from Buffalo Bore:

SAFETY NOTICE

"Some pistols chambered for the 40 S&W cartridge may not provide complete support of the case head. If this condition exists, normal pressure loads such as those shown here can cause the case wall to bulge or rupture at the unsupported point. Contact your firearm manufacturer to determine if your pistol completely supports the case head, or ask a gunsmith to inspect your pistol before using it with ANY ammunition. It is the gun owners responsibility to know his firearm and its capabilities and limitations."

40 S&W WARNING

"This data is intended for use in firearms which fully support the cartridge in the chamber. Use of this data in firearms which do not fully support the cartridge may result in bulged cases, ruptured cases, case head separation, or other conditions which may result in damage to the firearm and/or result in injury or death of the shooter or bystanders."

Glock happens to chamber their 40 S&W pistols without a fully supported chamber and both of those above safety notices are likely aimed at Glock. I know of no other 40 S&W handguns being sold in the US that don't have fully supported chambers. If you really want to shoot our 40S&W ammo in your Glock, have an after market barrel that uses a supported chamber, dropped into it. This is a fairly common practice and will give you the safety margin needed to fire our ammo in your Glock. It will also likely give you more velocity that the factory Glock barrel. I personally own two Glock Model 23's. Both of mine are going to get after market barrels dropped in so that I can use this excellent ammo in them. The issue of Glock pistols not having a fully supported chamber is with the 40 S&W cartridge only, not 45 acp, 10mm, 9mm or 380 auto. While Glocks chambers are not fully supported in any of those calibers, only the 40 S&W brass is weak enough in the web for it to be a safety issue.

 

[Soldiernurse]

Very interesting, well done!

 

[M&P Freak]

Nice shooting.

 

[scattershot]

Thanks for the report. Since there is no standard for +P in .40 S&W, I wonder what the pressure is?