This thread will explore loading the 311290 style boolit using LeveRevolution Powder. These boolits are the NOE Copy of the Lyman 311290. They are powder coated with Eastwood Blue Powder; and baked at 475 degrees for 40 minutes; then taken from the oven and water quenched. Boolits were sized to .310. Then the nose was sized to .301 to allow chambering. The OAL length of 2.855 prevents being able to load and cycle rounds in the internal magazine of this Remington 700 .308 Winchester Rifle. All rounds have to be loaded one at a time because of the OAL.
Because of the Primer Shortage, and wanting to use factory Primers to keep these test consistent with other Tests of this Boolit and Powder coating; I reduced the number of rounds from 10 round groups to 5 round groups. I have performed other tests using this 311290 boolit with "Non-Traditional" powders (read that as not listed in the various reloading manuals). As well as other tests using LeveRevolution powder in non traditional calibers. These can be found at:
https://castboolits.gunloads.com/sho...der&highlight=
https://castboolits.gunloads.com/sho...-56&highlight=
So for todays 311290 Boolit in a .308 Winchester using 30 Grains of LeveRevolution powder I loaded 5 rounds. Only 4 rounds are on Target because the CCI #200 for one round DID NOT IGNITE; despite 5 attempts. (Anyone else noticing increased failure to fire or other indicators of decreased quality control for new products the last 18 months?)
The following data is presented:
Rifle: Remington 700 ADL Varmint .308
Barrel Twist: 1 in 12
Wind: 2 to 5 mph
Temp: 50 degrees F.
Boolit: 311290
Ballistic Coefficient: .305
Brinnel Hardness: 9.8
Bullet sized: .310
Alloy: 96% Lead, 3% Antimony, 1% Tin
Bullet Lube: Entire Boolit coated with Eastwood Blue
Gas Check: Ameri-max Aluminum 0.14”
Powder: LeveRevolution 30 Grains with a dacron over powder filler
Primer: CCI-200
Case: PPU 7.62x51 Brass
OAL: 2.855 Inches
Distance: 100 Yards.
Black spotter is ~ .80".
10 Shot Group Size: 2.30 MOA.