Thread: 16.5 308 Recipe

Originally Posted by Nibblet

Anyone got a good recipe for a 308 16.5inch 1:10 shooting 208gr amax? I have always run adi 2208 but been in 24 inch barrel.I have a lot of 2208 and 2206h, the latter I'm guessing will be better for the short barrel. Any suggestions appreciated.

reloader 17 looks like a good choice around 46gn should get close to 2400fps @ around 58,000 psi -


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WARNING: Table produced by not verified Ballistics Calculations! Check results
always against loading data of current reloading manuals! Input data and results
may be invalid or wrong! The use of this data for loading ammunition can cause,
directly or indirectly, serious injury to personnel and material. No responsibi-
lity is implied and THE USER MUST ASSUME THE ENTIRE RISK OF USING THE DATA.
QuickLOAD© V.3.8 Interior BallisticsV.3.8 #535673
© Copyright 1987-2013 - H.Broemel, Babenhausen, Germany
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Case capacity and propellant properties may vary considerably from lot to lot!


**** Input data: Date: 31-Jan-2015 Time: 13:20:53
Cartridge................. = .308 Win. (SAAMI)
Projectile type........... = .308, 208, Hornady A-MAX 30712 with boattail


Max.avg.pressure(Piezo SAA)= 62000 psi Shot start / init pressure = 3626 psi
Projectile weight (gr)= 208 Groove caliber (in)= 0.308
Length of cartridge (in)= 2.800 Length of case (in)= 2.014
Case capacity(Grains Water)= 56.00 Length of projectile (in)= 1.340
Length of barrel (in)= 16.500
**** Values calculated:
Seating depth (in)= 0.554 Volume displaced (gn H2O)= 10.06
Comb.chamber volume(gn H2O)= 45.94 Projectile travel (in)= 15.040
**** Input data:
Propellant type........... = Alliant Reloder-17
Charge weight..........(gr)= 46.0 Load density......(g/cu.cm)= 0.999
Heat of Explosion (cal/lb)= 432279 Ratio of spec. heats cp/cv = 1.229
Solid density (gr/cu.in)= 407.2 Weighting factor...........= 0.5
Burning rate factor Ba(1/s)= 0.47 Pro-/degressivity factor a = 0.805
Burning limit ......... z1 = 0.6 Combust.Chamber Vb(ft³)= 1.053292E-4
Factor.................. b = 2.002 X-S.Area of Bore A(ft²)= 5.114101E-4
Bulk density (gr/cu.in)= 244.0 Projectile mass mp (lb)= 2.97134E-2
Loading ratio (%)= 103.6 Projectile travel x(ft)= 1.253346E+0


**** Results calculated:
Maximum pressure ........ = 58091 psi Way of projectile at Pmax = 1.28 in
Muzzle velocity ......Ve = 2360 fps Muzzle pressure .......Pe = 12339 psi
Project. energy at muzzle = 2571 ft.lbs Fraction of powder burnt = 99.4 %
Projectile travel time from 10% Pmax to muzzle = 0.99 ms


WARNING: Near Maximum Average Pressure - tolerances can cause dangerous pressures !
Real maximum of pressure inside barrel.
End of combustion after the projectile passes muzzle.


308.208-re-17 -.txt