Ruger SR1911 .45 ACP vs Springfield Armory 1911 Loaded .45 ACP

These two Government-size 1911s land within 1 oz and 0.07" of each other on the spec sheet, so the buying decision rides on what is not in the table: frame construction and sighting setup. The Ruger uses an investment-cast stainless steel frame and slide with Novak drift-adjustable 3-dot sights (no tritium). The Springfield Loaded runs a forged carbon steel frame and slide with Parkerized finish, factory tritium night sights, and an extended ambidextrous thumb safety. The Ruger carries 8+1 to the Loaded's 7+1.

Pick the Ruger SR1911 if:

• You want stainless construction that tolerates casual cleaning better than a Parkerized carbon steel finish, especially for humid-climate carry or range storage
• You want the 8+1 capacity over the Loaded's 7+1 — one extra round in a single-stack .45 ACP without going to an aftermarket magazine
• You want Novak drift-adjustable rear sights from the factory rather than the Springfield's fixed dovetail setup

Pick the Springfield 1911 Loaded if:

• You want a forged frame and slide, which 1911 culture historically prefers and which holds better used-market resale than the SR1911's cast frame
• You want factory tritium night sights for low-light use without paying for an aftermarket sight installation
• You want an extended ambidextrous thumb safety standard — useful for left-handed shooters and weak-hand-only manipulation

Both are 5" Government-size single-action 1911s with grip safeties, both ship with two magazines, and neither has an accessory rail or factory optic cut. The decision comes down to forged-vs-cast frame preference and whether tritium sights and an ambi safety are worth the trade against stainless construction and the extra round of capacity.