This is extremely non scientific and purely anecdotal but I thought it was interesting. I still have one rifle threaded 5/8” before it gets cut shorter and threaded 1/2” (just for consistency across my rifles) so some of my 1/2” threaded guns have secondary adapters on them to jive with the 5/8” HUB adapters.
Rifle is a stock T3X 22-250, 1-8”, cut to 19”. Scope is a 3–15 SWFA in Hawkins LR hybrid rings.
I fired 2 groups, one with a Resilient Jolene S with the 5/8” Hub adapter and the secondary 1/2 to 5/8” adapter on the rifle. Prone off a bipod with a rear bag. All shots felt pretty solid. Resulting group was 1.3” with a large amount of that being vertical stringing.
Next group was 7 rounds from the same position but the Jolene S was swapped out for my Polonium 30 with a Kaw valley precision 1/2-28” HUB adapter and the secondary adapter removed.
Resulting group was 7 in just over 1/2” with 6 being almost in the same hole.
Now, I have had suspicions about using secondary adapters for a little while and while they may not be well founded for others, stacking tolerances on this particular rifle seems to be problematic. Of course there could also be some harmonic differences with the 2 cans but the Jolene S appears to not be the issue on a couple other rifles that hammer with it, without the use of a 1/2 to 5/8” adapter.
Anyhow, I’m sure this probably is just a sample of one but thought some may find it interesting. I will repeat the test with the Jolene S with a 1/2” HUB adapter to eliminate one more factor next i shoot.


Rifle is a stock T3X 22-250, 1-8”, cut to 19”. Scope is a 3–15 SWFA in Hawkins LR hybrid rings.
I fired 2 groups, one with a Resilient Jolene S with the 5/8” Hub adapter and the secondary 1/2 to 5/8” adapter on the rifle. Prone off a bipod with a rear bag. All shots felt pretty solid. Resulting group was 1.3” with a large amount of that being vertical stringing.
Next group was 7 rounds from the same position but the Jolene S was swapped out for my Polonium 30 with a Kaw valley precision 1/2-28” HUB adapter and the secondary adapter removed.
Resulting group was 7 in just over 1/2” with 6 being almost in the same hole.
Now, I have had suspicions about using secondary adapters for a little while and while they may not be well founded for others, stacking tolerances on this particular rifle seems to be problematic. Of course there could also be some harmonic differences with the 2 cans but the Jolene S appears to not be the issue on a couple other rifles that hammer with it, without the use of a 1/2 to 5/8” adapter.
Anyhow, I’m sure this probably is just a sample of one but thought some may find it interesting. I will repeat the test with the Jolene S with a 1/2” HUB adapter to eliminate one more factor next i shoot.

