Cartridge size, grains, velocities, impact, penetration...blah, blah, blah. No matter the tech speak, accuracy trumps everything. Because if you can't hit your target where it matters most and when it matters most, nothing else will really matter after that.
To the OP: If those lower grain cartridges are not SAAMI spec'd and not brass, be advised not to use them. Stick to industry-standard SD 9mm cartridges, and you'll be fine. And above all, practice, practice, practice
Last edited by Vincent04; 01-22-2020 at 10:47 AM.
Last edited by Knight3124; 01-22-2020 at 12:17 PM.
I use 124+P or 147 HST with Gold Dots a close second in all my 9mm firearms. I'd use whichever I have handy, but most of my practice ammo is 124gr, so I'll likely standardize on that.
12-18” is the standard deviation extracted from the FBI test. It’s Ballistics for Dummies in a 3 min YouTube vid. In the OP a variable is introduced where none existed with HST/Gold-Dot performance, 50-100rds is all you need after break-in.
And stay within the medium, they build 9mm SD handguns in 1:9 Twist optimized for 115/124/147 weights.
While you are searching on Youtube, check out Paul Harrell.
He has covered the differences in 9 mm ammo offerings.
This video is about Liberty Civil Defense 9mm Ammo.
Spoiler Alert, he is not a fan of "Hyper" ammunition and covers why he has that opinion.
I have put over 1500 rounds through my VP9 115 grain no problems at all.
VP9 - times 4
HK45 V1 German Made
HK45 V7 US built
HK45 V1 US built
HK45C V7 OD
HK 45C V1 German Made
I just bought a VP9sk, and I broke it in with 50 rounds of 147 grain American Eagle, then 50 rounds of 124 grain Federal HST, then another 50 of the 147g AE, then 50 rounds of 115g Blazer Brass, then a final 50 of the 147g AE.
Zero malfunctions of any kind. I'll shoot more 115g next time to see if there are any issues with it, but the first 50 shot just fine.
I have both the VP9 and the VP9SK. I have shot around 4,000 rounds through them without a hiccup. I have shot the Liberty 50 grain +P and did not like them. Thats just my opinion. Additionally I shoot the 115, 124, 147 and 150 grain bullets with zero problems. My preference are the 147's since I shoot them in competition. Since the VP9SK has a shorter barrel length I use HST Micro 150's for carry since they were designed for shorter barrels. In the end, for personal defense, I always buy several boxes of varying manufacturers to see which shoots best in my particular pistol. As an aside, I have never noticed much if any differences between "brand" name manufacturer's PD ammunition in any pistol I own.