Re: ERMA SR100
I appreciate what lowlight says from the simplicity point, but the program is large enough to dedicate rifles per barrel/twist type, but with a lot of prep work so that we use the actual shooting, to confirm what is partially confirmed through other means. I fixed barrel also eliminates rifle variables when really we want to see what the ammunition/bullet/powder/twist will do. Adding potential rifle variations only adds to the variable and distractions
As for the comments of others who replied, do we have any actual military combat users out there who have actually converted from one caliber to another in the field as opposed to going to your mobile stores and picking another rifle from the “proverbial golf bag” for specific operational requirements, that actually necessitates a caliber change . Actual field experience comments showing the success/real utility of one multi caliber rifle would be enlightening
The idea of carrying one rifle with a caliber conversion, and two different types of ammunition by one man on foot (already overloaded) well, is - logistically and tactically dubious. If you cannot go back to the truck or dedicate two dedicated rifles with two dedicated marksman, you may also have already “manufactured” one of your own problems. It sounds good in non procurement strategy when one system is expected to perform its role, wash the dishes, ake out the kitty cat, and go for a walk. Ask the people in the field how many times they need change calibers in the field? It is not that these rifles cannot succeed because they can, and have. My point is that more variables degrade the accuracy over time and needlessly add variables that can fail. Why set yourself up for that with a “Swiss Army knife tactical rifle”?
Ours is an ammunition development program, not a rifle program, but this issue is an obvious problem that effects the delivery of the whole package, and we just don’t accept “half measures” We just don’t. Beat up the rifle with the big caliber, and then go back to the conversion on the small cal with exchanging parts and what can you expect in performance? .338 Lapua Magnum is a large, violent cartridge on the rifle (wear, tolerances, peening) , and nothing can change that. This is long range precision shooting, not “good enough” service rifle shooting a much shorter close combat rifle ranges. What we are talking about in a sniper/anti-material rifle is not a “good enough” shorter range service rifle performance because we are talking about two “different animals”.