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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
5R rifling any thing Better?????
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<blockquote data-quote="Capt RB" data-source="post: 2347943" data-attributes="member: 85987"><p>One thing with the 6mm bore mentioned in the 1000yd game. A 5R needs to be a .237 bore for whatever reason. THe .236 bore works better for a 4 groove. Both bores are better for different projectiles. the 105 class of bullets work better in the .236 and the bigger 112-115+ seem to work better in the .237 bore. THe 1k game is a dasher game which would be a 105 ish type bullet explaining why the 4 groove is the choice</p><p> From what I've read on the 3 groove it is a better option all else being equal for excessive overbore chamberings. Most of this info is from builders and shooters I know or follow with much more data on the subject than I have accumulated. The most accurate barrel rifling method is less about 4,5,6 etc and far more about how straight and concentric it came out. How well chambered and put together also makes a difference. Some of the sleeved and structured barrels produce results in every form of rifling so saying one is better best or bestest is quite subjective. With ELR being more and more a solid/mono metal bullet, gain twist and like Swamplord said 6 and 8 groove amd most likely some form or odd-numbered high groove number might be a new standard if and when we see 1/4moa 3500yd expected accuracy who knows. THankfully we have the freedom to find out</p></blockquote><p></p>
[QUOTE="Capt RB, post: 2347943, member: 85987"] One thing with the 6mm bore mentioned in the 1000yd game. A 5R needs to be a .237 bore for whatever reason. THe .236 bore works better for a 4 groove. Both bores are better for different projectiles. the 105 class of bullets work better in the .236 and the bigger 112-115+ seem to work better in the .237 bore. THe 1k game is a dasher game which would be a 105 ish type bullet explaining why the 4 groove is the choice From what I've read on the 3 groove it is a better option all else being equal for excessive overbore chamberings. Most of this info is from builders and shooters I know or follow with much more data on the subject than I have accumulated. The most accurate barrel rifling method is less about 4,5,6 etc and far more about how straight and concentric it came out. How well chambered and put together also makes a difference. Some of the sleeved and structured barrels produce results in every form of rifling so saying one is better best or bestest is quite subjective. With ELR being more and more a solid/mono metal bullet, gain twist and like Swamplord said 6 and 8 groove amd most likely some form or odd-numbered high groove number might be a new standard if and when we see 1/4moa 3500yd expected accuracy who knows. THankfully we have the freedom to find out [/QUOTE]
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5R rifling any thing Better?????
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