Re: 308AI cases
I haven't made any quantitative analysis of RL17 and temp swings.
Here are some chrono results I had, while laddering up with RL17, 220gr SMK, in a 20.5" 308,
220gr Sierra Matchking, moly’d
2.82” OAL
Win brass
Reloder 17
46gr – 2368, 2401 (30’ from muzzle)
47gr – 2402, 2448
48gr – 2484, 2463
49gr – 2535, 2532
Another string I recorded with 208s over 50gr RL17, starting with a cold clean bore, 20.5" bbl,
2599
2611
2617
2618
2618