I was going through shooting cabinet odds and ends last week and came across an old Eric Brooks CZ 452 Spring & Tube Kit. It was passed along in a rifle swap. The owner had installed the black tube and spring #2 in the CZ 452 American I received in the swap. It still had red, green, and blue sleeves along with the American's original factory spring (thoughtful of the seller, in case I ever sell it). Also, there were the #1, #3, and #4 replacement springs. It got me to thinking.
I got out the Lyman trigger pull gauge and checked the pull on my FS. It was 3 lbs 7 ozs. Since I don't pursue CMP Sporter that much anymore (3 lb minimum trigger required), I decided to install the #4 spring in the FS. I watched the YoDave YouTube video and then quickly had the replacement spring installed. There was no creep, so I did not need a sleeve. The weight of the new pull is 2 lbs 6 ozs. Repeated bump tests, action cycles, and safety engagements/releases yielded no issues.
I usually shoot this FS with the open sights, but I keep a big BSA Platinum 36X44 scope around in a set of Warne high tip-off rings. I often slap the scope on a hogsbacked stocked CZ for accuracy testing. I got the scope for like sixty bucks once from Midway. I know these can be junk, but this one holds a zero well (at least for rimfires) and even tracks decently. It is a bit dark, but it tends to work fine in the Alabama sunshine.
I thought a good test for the reduced trigger pull would be a run at the 25 yard USBR target in the RFC Online Benchrest Match. The replacement spring makes the rifle ineligible for the RFC Box Stock Factory Sporter Class. It would have been eligible for the regular Factory Sporter Class, but that class has a 24 power scope power ceiling. So, the only option was to post a score in the Unlimited Class. So, I was shooting against the big target and designated bench guns. Oh well, it won't be the first time.
This morning's conditions were nigh on perfect! Calm and 80 degrees with mixed cloud cover.
The 248-4X was my first run. One is allowed to post the best of four attempts. I never want to burn that much of my precious .22 ammo - chasing my tail. So, I will seldom fire more than one target. However, I got fired up with the 248 and its two near misses (nines) and had to give a second target a try. Oh well, it was a 246-8X. If nothing else, I was tickled that the X count doubled.
Who says a full stocked rifle won't shoot?
I got out the Lyman trigger pull gauge and checked the pull on my FS. It was 3 lbs 7 ozs. Since I don't pursue CMP Sporter that much anymore (3 lb minimum trigger required), I decided to install the #4 spring in the FS. I watched the YoDave YouTube video and then quickly had the replacement spring installed. There was no creep, so I did not need a sleeve. The weight of the new pull is 2 lbs 6 ozs. Repeated bump tests, action cycles, and safety engagements/releases yielded no issues.
I usually shoot this FS with the open sights, but I keep a big BSA Platinum 36X44 scope around in a set of Warne high tip-off rings. I often slap the scope on a hogsbacked stocked CZ for accuracy testing. I got the scope for like sixty bucks once from Midway. I know these can be junk, but this one holds a zero well (at least for rimfires) and even tracks decently. It is a bit dark, but it tends to work fine in the Alabama sunshine.
I thought a good test for the reduced trigger pull would be a run at the 25 yard USBR target in the RFC Online Benchrest Match. The replacement spring makes the rifle ineligible for the RFC Box Stock Factory Sporter Class. It would have been eligible for the regular Factory Sporter Class, but that class has a 24 power scope power ceiling. So, the only option was to post a score in the Unlimited Class. So, I was shooting against the big target and designated bench guns. Oh well, it won't be the first time.
This morning's conditions were nigh on perfect! Calm and 80 degrees with mixed cloud cover.
The 248-4X was my first run. One is allowed to post the best of four attempts. I never want to burn that much of my precious .22 ammo - chasing my tail. So, I will seldom fire more than one target. However, I got fired up with the 248 and its two near misses (nines) and had to give a second target a try. Oh well, it was a 246-8X. If nothing else, I was tickled that the X count doubled.
Who says a full stocked rifle won't shoot?