Got this Email today:
"Dear JP customer,
If you are receiving this email, it means your current order for one of our JP Supermatch™ barrels in .224 Valkyrie is eligible for fulfilment in our first production run. But, because of the unforeseen complications of developing barrels for a brand new caliber like this, we wanted to contact you before completing your order.
After final testing of these barrels, we have discovered that accuracy specific to 90gr. Sierra Match King and the 90gr. Fusion hunting ammo is only mediocre. These results are not up to the JP standard, and as such, we cannot honor our accuracy guarantee with this 90gr. ammunition.
However, the Federal varmint load using the 60gr. Nosler Ballistic Tip and our personal test loads using 77gr. Sierra Tipped Match Kings shot well from these barrels. With the 77gr. Tipped Match Kings, we achieved maximum velocities in the 3000 ft/s range. This compromise of utilizing lighter projectiles with much higher MV and slightly lower BC may actually result in higher hit probabilities within the effective range of the cartridge. This is particularly the case with unknown distance targets.
At this point, we want to offer you the choice of confirming your order and receiving one of these first JP .224 Valkyrie barrels. Alternately, you may opt to wait for our next run of barrels with further design changes to improve the performance of the 90gr. bullets. The choice comes down to your choice of application and ammo.
Please respond to this email with your preference.
If you choose to wait, your order will still be fulfilled in the order it was received as soon as the new barrels arrive and are tested. If you choose to wait, we expect to ship your order sometime in May.
Sincerely,
JP Customer service team"
Honestly I'm not surprised, and I'm glad they are doing due diligence before releasing their barrels. I haven't seen anything impressive from the 1-7 twist barrels and 90 grain bullets from other barrels that are out. It may be chamber dimensions as well, but either way, glad they are working on it. I have opted to wait as I am in no hurry.
I did inquire to see if they have tested 80 grain class bullets. Ballistically they seem to have an advantage over the 90s at most distances.