Here is some light reading for you....hopefully answers some of your questions:
https://thebiggamehuntingblog.com/the-45-70-government-html/
https://ultimatereloader.com/2021/08/02/45-70-intro-to-reloading-and-shooting-marlin-1895-lever-gun/...
I concur on leaving the rear sight alone. I have the center mount and it is exactly where I want the RDS mounted. Plus, I think that maybe the balance of the pistol is better with the RDS mounted more towards the center of the gun vs the extreme back position.
Purely my preference.
Also note, if going with the maddmacs mount, the "Center Base 2.0" model fits the factory drilled and tapped holes with the mount centered over the ejection port.
The "DT Base 2.0" model secures to your pistol in the rear sight dovetail and first scope base screw hole (mounting the RDS to the...
And I forgot to answer the "why" of your original post....I did not like how high the RDS sat on top of the Pic Rail, in addition to the fact that some RDS sights do not include a Pic Rail adapter (swampfox & holosun to name two), the Pic Rail adapter is an additional cost and also an additional...
If you are looking for a more "universal" mount in regards to RDS footprint....this mount might work better for you.
https://outerimpact.com/home/fa/product/modular-red-dot-adapter-mra-for-ruger-mark-series/
I prefer the slightly more contoured look of the maddmacs.
The maddmacs precision mounts would screw directly to the top of the drilled and tapped receiver on your MK series pistol. The mounts are specific to whatever RDS footprint you want to install (NOT universal)....Same as the pics in Hibs post above.
I have mine installed on a Ruger MK IV...
YUKON TRACKS TRI-FOLD ALUMINUM ATV RAMP
Lightweight, fully welded aluminum construction. Extruded rectangular side rails resist bending while the taller rectangular cross section supports more weight. Heavy-duty hinges and joints are welded, not riveted. Rubber coated tabs to prevent tailgate...
Factor 55 HITCHLINK 2.5
Fits 2.5" RECEIVERS
Fits standard Class V 2.5-inch receivers
Made in America
Rated at 18,000 pounds
Ultimate failure at 69,000 pounds
Fits common ¾” (7/8” pin) and 7/8” (1” pin) screw pin shackles/D-rings
Gray
WARN 88924 Nylon Webbing Premium Recovery Strap...
I also use a Dillon 550C and a RCBS Rock Chucker Supreme IV the same as above....550 for quantity pistol ammo....Rock Chucker for precision rifle ammo.
Also, I use the Hornady Lock-n-Load Press and Die Conversion Bushing Kit in the Rock Chucker. Makes switching die types plug and play...
Magpul
UBR GEN2
Collapsible Stock, Flat Dark Earth
Fits AR15/M4 and AR10/SR25 Platforms
Compatible with Carbine, A5 and SR-25 Length Buffer Systems
*NOTE: The UBR GEN2 includes the required custom Receiver Extension tube, Buffer Spacer, and all mounting hardware. A carbine buffer and...
Freeland’s Universal Tripod Scope Stand 5/8″ Rod
Includes:
3-Sections of 5/8” Extension Rod (one-22” section with carry ball, two-18” sections)
Saddle Head
Zoom Head
Ground Spike
Great condition.
Located in Harford County...
Competition Electronics Chronograph
ProChrono Digital (Part #: CEI-3800)
Bluetooth Adapter – Digital Link (Part #: CEI-3812)
ProChrono Digital USB PC Cable (Part #: CEI-3810)
Includes Plastic Diffuser Screens and Support Rods.
Excellent Condition, Works Great with Bluetooth and Phone...