Chriznak Posted February 5, 2016 Share Posted February 5, 2016 (edited) Anyone aware of a 338 Lapua base-size cartridge that has been made as long as a Cheytac case and necked up to 375? I'm thinking it would:1.be a good ballistic mini-me to the 50 BMG running a 700 grain bullet at bc~.80 or so.2.be more efficient than the 375 Cheytac in regards to barrel-life & powder-consumption for kinetic energy.3.function better out of a browning m2 style or General Dynamics LWMMG style gun than the 338 norma mag.4.have better brass flow & reload-ability than the 375 Allen express.I like the relationship the mk262 223 Rem. round has to the cold-war era m80 308 Win. round. Attributes that result in less cost to shoot, train with & practice:*equal bc*equal muzzle velocity*half the bullet-weight*half the powder *the same kind of powder (ie varget, IMR 4166, etc)*less muzzle blast*smaller primer.*suppressors that are dual-use for 308 win & 223 rem*gun "platforms" (AR, DT MDR, etc) that have same interface for both 308 win & 223 remI would like to find or wildcat a cartridge that has the same relationship the mk262 has to the m80 cartridge but in regard to the 50 bmg running 700 grain solid/fmj/raufoss(with COAL sized to run in an m107). I would also think the cartridge would function in a scaled down browning m2, barret m107, or cheytac-size bolt-actions(with smaller bolt-face), or scaled-up General Dynamics LWMMG.I'm thinking a .375 bullet made lock-base fmj style (for hard-targets) and an Accubond LR style( for hunting) can both be made to have the same bc & weight as the .375 350 grain SMK. All 3 bullet types would have a lower minimum-velocity than the .375 350 grain solids in case a user wants to run the cartridge out of a barrel shorter than 29".I'm thinking other shooters would appreciate a Mini-Me to the 50 bmg also.The closest thing I have found is the 375 allen express. I suspect the 375 Allen Express has insufficient body-taper & excessive shoulder angle to function in a select-fire gun.I look forward to conversing with whoever wants to respond here. Edited February 5, 2016 by Chriznak Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now