Author: Goosic
Subject: You going to do what!?!?
Posted: May 15 2021 at 10:09am
Subject: You going to do what!?!?
Posted: May 15 2021 at 10:09am
 britrifles wrote:I’d be surprised if a .308 bullet shot better than a .311 bullet in a .303 barrel. Perhaps with a tight bore, say .301 to .302 they would shoot just great. 2 groove vs 5 groove also may make a difference because of how the bullet is supported. Somewhere on this forum I reported results with light .311 bullets, I think they were Lapua 123 flat base. They shot pretty good in my 5 groove BSA barrel and made a nice light recoil load. But not as good as the 174 gr SMK. I think the best light load plinking bullet for the .303 would be cast bullets. Even the heavy cast bullets loaded to 1600 to 1800 fps has very light recoil. .308 bullets shoot good in .30 Cal/7.62 barrels. |
Speer had a Pinker load using a 100gr flatbased 32cal pistol bullet. It was advised to use some form of batting material or cardboard wad to keep the powder from uncovering the flash hole and creating a flash over scenario when the cartridge was inserted into the chamber.
In my original first post on this topic, I explained why I will use 168grn 308 bullets in my Long Branch or Savage made Enfield with the 2 groove barrels only. A two groove barrel, if in good condition, will hold the 308 projectiles just as well as its 311 counterparts. The lands are a smidge tighter than the multi grooved barrels. This was told to me by a now deceased NRA/Bisley/Camp Perry/All over the world target shooter that used a No4Mk1* Long Branch with the 2 groove barrel for all his competitions.