fartbacker wrote:Bugger, my first post and was more of a statement that a request for confirmation of my belief...lol. Anyways, went for 85g, 46g of AR22098 and an ogive of 2.161 the same as factory 143g but of course with less hold on the round but about 3\16th. With the 123g forced to go with 2.043 ogive due to cannelure with 44g of AR2209 not complressed and crimped with Lee crimping die. Once I have the T3X (still a month or so away), will measure the chamber to lands and for future rounds take the ogive up as far as I can. Will crono the 85 , 123 and 143 when running in and sighting the scope...
Oldbloke wrote:Cannuler is intended to prevent the projectile moving under recoil. Generally not required IMO. More popular with tube magazines.
They have the added benefit of helping to hold the projectile together during impact.