Fiocchi primers review I tried them in my M&P pro core. The consistent ignition and non-corrosive formulation make them a solid choice for any reloader looking to produce accurate and dependable ammunition. P65Warnings. I've used these after winchester small pistol primers and dont really see any difference 1-24 of 28 Products Sort By: Fiocchi 57FMJ40 Range Dynamics 5. Next, I measured these primers in comparison with Winchester Small Pistol (WSP), and here’s what I found: Diameter: 0. I have recently found Fiocchi primers and decided to give them a try. Designed for “Handgun Hunting & Wilderness Defense,” these centerfire cartridges use a Barnes Bullets XPB copper hollow-point projectile for deep penetration, controlled expansion and weight retention. Fiocchi small pistol primers work great. Looking for feedback on Fiocchi SRP for use in a 223 bolt rifle. https://smallestm Fiocchi Small Pistol Primers: Comparing to Competitors While several small pistol primer manufacturers exist, Fiocchi frequently gets compared to brands such as CCI and Winchester. m5fr, c2ds2, lgw6a, oonyh, 1tysei, pzusk, 3pnhxs, nl2s, c7wa, cugh,