Page Index Toggle Pages: 1 [2] 3 4  Send TopicPrint
Very Hot Topic (More than 25 Replies) .22 BPCR Rifle: CPA 44-1/2 vs. CSA Low Wall? (Read 3994 times)
.22Hepburn
Oldtimer
*****
Offline



Posts: 835
Location: Pennsylvania
Joined: Feb 18th, 2008
Re: .22 BPCR Rifle: CPA 44-1/2 vs. CSA Low Wall?
Reply #15 - Feb 21st, 2025 at 8:22pm
Print Post  
rnnhntr, how much ammo testing have you done with your Stevens ? The TJ’s liners are very good liners. Depending what chamber you’re using and how it is set up, your rifle should be capable of better scores. Testing some different match grade ammos at 200 yds, if you haven’t already done that, should tell you what your rifle is capable of. Don’t underestimate how well liners can shoot. I have several rifles with Redman liners (which are the liners used in the Crossno liners) which are very accurate.
  
Back to top
IP Logged
 
Green_Frog
Frequent Elocutionist
*****
Offline


"It ain't easy being green"
ASSRA Life #281

Posts: 4118
Location: Lynchburg, VA
Joined: Apr 18th, 2004
Re: .22 BPCR Rifle: CPA 44-1/2 vs. CSA Low Wall?
Reply #16 - Feb 21st, 2025 at 10:16pm
Print Post  
I’m surprised no one has mentioned this.  I am a strong devotee of Winchester  ‘wall, both high and low, but if I were serious about rimfire BPCS and choosing between the two rifles you mention, the Stevens copy would win hands down. (Don’t hurt yourself laughing ledball!)
The Winchester has one major design flaw, found only in the 22 rf, that abominable extractor!  Ballard is better, Stevens is better, basically everybody had a better design than one that had the firing pin strike the rim that was on a moving surface.  If I had a custom built rifle and knew what I know now, it wouldn’t have that extractor.
This is my opinion based on experience with my own custom barreled (Shilen) low wall Winder Musket, YMMV.
Froggie
« Last Edit: Feb 25th, 2025 at 11:37am by Green_Frog »  
Back to top
 
IP Logged
 
CW
Oldtimer
*****
Offline



Posts: 515
Joined: Feb 20th, 2018
Re: .22 BPCR Rifle: CPA 44-1/2 vs. CSA Low Wall?
Reply #17 - Feb 22nd, 2025 at 12:07am
Print Post  
Green_Frog wrote on Feb 21st, 2025 at 10:16pm:
I’m surprised no one has mentioned this.  I am a strong devotee of Winter ‘wall, bath high and low, but if I were serious about rimfire BPCS and choosing between the two rifles you mention, the Stevens copy would win hands down. (Don’t hurt yourself laughing ledball!)
The Winchester has one major design flaw, found only in the 22 rf, that abominable extractor!  Ballard is better, Stevens is better, basically everybody had a better design than one that had the firing pin strike the rim that was on a moving surface.  If I had a custom built rifle and knew what I know now, it wouldn’t have that extractor.
This is my opinion based on experience with my own custom barreled (Shilen) low wall Winder Musket, YMMV.
Froggie


DZ makes an 1885 extractor located at 9:00 o'clock and has an ejector. I had DZ barrel a low-wall for my young son. It is a good choice.

I used to shoot a Cody Ballard, Baldwin iron sights with a 30 inch barrel and it was 100% capable of hitting everything.  The whole setup was just a little small for me.
Mostly now, I shoot the CPA scoped with the old MVA 28" and Schuetzen scope mount. It has a Douglass 16 twist and delivers for me. It has a very heavy 26 inch round barrel.  I can't shoot light rifles offhand for squat. Short light barrels don't hold for me.
    Texas Mac - I have never shortened a barrel, so I have no experience. Just a comment on velocity.... we have been chronographing our 22rf match ammo (again) since the Garman chrono units came on the scene.  To my surprise, the Eley I shoot has "Eley's" tested lot velocity on the box. each lot is labeled with its own tested velocity,  and I buy it based on their stated velocity. As an example, mine and other rifleman find their ammo runs 40fps +/- over the Eley lot/FPS number  -  well over 1100 FPS  So my question -What would the velocity be if I shot a 16 inch barrel, almost 1200FPS? and how is Eley getting such slow speeds (1065FPS) and what barrel length are they using to test velocity? Super-duper long???

The suggestion of going to a faster than 16 twist is also interesting. I have no direct experience - two low-walls, a Ballard and a CPA. All 16 twist.   GT has been telling me of his testing with fast and really fast twist 22rf's.   I am not sure I could tell!!!   It would take setting up two rifles with ammo it likes and a lot of shooting. Sure sounds like fun!!!
-Michael Rix 
  
Back to top
 
IP Logged
 
texasmac
Frequent Elocutionist
*****
Offline



Posts: 1996
Location: Central Texas
Joined: Aug 16th, 2004
Re: .22 BPCR Rifle: CPA 44-1/2 vs. CSA Low Wall?
Reply #18 - Feb 22nd, 2025 at 2:08am
Print Post  
Michael,

I shoot mostly Eley Match (black box) for .22BPCR competition.  And I also purchase it based on the velocity stated on the box which certainly can be different depending on the rifle.  Wondering how Eley determines the lot velocity I ran across the following:

Once a lot is manufactured, four different fixed test guns fire that lot in a 50 meter tunnel. These rifles are all different ages (based on round fired) with different barrel lengths and chamber specs. If all four guns shoot a lot well the lot is labeled 10X. If it shoots well in some of the guns and not others, it's labeled Match. If it does not shoot that well in any of the guns, it's labeled Eley Team.

Concerning barrel length vs. velocity.  Here's the results of shortening a Ruger 77/22 barrel in 2" increments: 28" 1095fps, 26" 1107, 24" 1119, 22" 1129, 20" 1138, 18" 1149, 16" 1157, 14" 1149 fps.  So the average is approximately 4fps/inch.  I believe it was Eley but not certain & don't know if it was 10X, Match, etc.

BTW, due to CRS memory issues  Roll Eyes, there is an error in my earlier posting.  When I shortened my rifle from 26" to 20" the velocity increased an average of 25 to 35fps depending on the ammo (not 30 to 45fps).

And on 16 vs. 14-twist, if I were to replace the barrel now, I'd probabley go with a 14-twist to minimize the possibility of stability issues down range (200 meters for BPCR).  To increase stability (assuming it's an issue), one must increase the bullet spin-rate.  The faster the spin the more stable the bullet remains in its trajectory.  There are two methods, increase the velocity or use a faster-twist barrel, the faster-twist barrel being the most effective.

Wayne
« Last Edit: Feb 22nd, 2025 at 3:32am by texasmac »  

Back to top
 
IP Logged
 
boats
Frequent Elocutionist
*****
Offline



Posts: 7626
Location: Virginia
Joined: Apr 23rd, 2004
Re: .22 BPCR Rifle: CPA 44-1/2 vs. CSA Low Wall?
Reply #19 - Feb 22nd, 2025 at 8:11am
Print Post  
A mix of what I hear, think & know. No particular order.

.22 Rimfire velocity varies depending on temperature 

Button rifled barrels like Douglas are smother than cut rifled.

Muzzle weight reduces gun movement when used offhand 

50 meter machine rest in a tunnel will show which cartridges are most accurate.

Outdoor testing long distance bench rest has enough variables to mask cartridge performance 

If the shooters believes in his outfit he will shoot higher scores 

If results are important use the best you can buy and stay with it 

Boats
  
Back to top
 
IP Logged
 
japcas
Participating Member
*
Offline



Posts: 35
Location: Kingsport, TN
Joined: Feb 19th, 2022
Re: .22 BPCR Rifle: CPA 44-1/2 vs. CSA Low Wall?
Reply #20 - Feb 22nd, 2025 at 8:17am
Print Post  
texasmac wrote on Feb 22nd, 2025 at 2:08am:
Michael,

And on 16 vs. 14-twist, if I were to replace the barrel now, I'd probabley go with a 14-twist to minimize the possibility of stability issues down range (200 meters for BPCR).  To increase stability (assuming it's an issue), one must increase the bullet spin-rate.  The faster the spin the more stable the bullet remains in its trajectory.  There are two methods, increase the velocity or use a faster-twist barrel, the faster-twist barrel being the most effective.

Wayne


Not sure how much but doesn't the faster twist rate also reduce velocity?  Looks like it would be counterproductive if you gain twist rate but lose velocity while doing so.  I've read tests on 22 LR twist rate experiments.  A lot of it seems to be inconclusive, with too many variables with ammo making it hard to say whether it made an improvement.   
  
Back to top
 
IP Logged
 
Ranch13
Oldtimer
*****
Offline



Posts: 588
Location: East Central Wy.
Joined: Jan 20th, 2018
Re: .22 BPCR Rifle: CPA 44-1/2 vs. CSA Low Wall?
Reply #21 - Feb 22nd, 2025 at 9:18am
Print Post  
The 14 twist doesn’t bother the velocity and the stability at 200 meters is real.
My rifle with the 14 twist placed 1st and 3rd ,2 years running and was the highest iron sight score at the Desert international in Phoenix
I find this rifle to be way less picky about ammo don’t know if it’s the twist or what, but shooting the yellow box Eley Target seems to work quite well.
« Last Edit: Feb 22nd, 2025 at 9:24am by Ranch13 »  
Back to top
 
IP Logged
 
Old-Win
Frequent Elocutionist
*****
Offline



Posts: 1738
Location: Minnesota
Joined: Nov 24th, 2005
Re: .22 BPCR Rifle: CPA 44-1/2 vs. CSA Low Wall?
Reply #22 - Feb 22nd, 2025 at 10:50am
Print Post  
My choice was a highwall built about 20 years ago and it works pretty well.  Barreled with a GM 16" twist 30" full octagon by Steve Baldwin.  He ground a tool to cut that funky extractor.  When I got it back from Steve, there was a little binding so I was able to fit the extractor so it was about as good as you can get it.  Set trigger parts and lever were all from Cody Ballard.  Color case by Classic Guns in Illinois, wood and checkering by me.  A couple of 200 yd targets and it does like Lapua LR.
  
Back to top
 
IP Logged
 
GT
Frequent Elocutionist
*****
Offline



Posts: 2143
Location: Northeast Wyoming
Joined: Jun 28th, 2015
Re: .22 BPCR Rifle: CPA 44-1/2 vs. CSA Low Wall?
Reply #23 - Feb 22nd, 2025 at 12:09pm
Print Post  
Choosing a rifle is a tough one, I favor the 1885 over the 44 or the 44-1/2 but I prefer the Ballard over all.   
I am currently shooting silhouettes and long range with a HW and it has a cut rifled, 1:9 twist.  It favors CX from Lapua and the velocity comparison with the same ammo in one of my "run and gun" rifles for NRL is negligible by comparison - it has a short barrel - mainly for convenience around obstacles.  A 20 - 30' fps average variance, doesn't make any difference to me.  If I PRACTICE, that is the real key, shoot good ammo, and believe in my system both of these rifle will keep me in or near the top of the winner's circle.   
Generally a rifle keeps my interest, (contrary to most's thinking) for a season and then a new build catches my focus and my process begins all over.  The High Wall and the Vudoo have both run their course and I have several new build projects in the works.  For the single shot game, this next year there are at least 4 builds in the line-up, one is a CPA but my interests are leaning back towards a Ballard.   
I believe in fast twist, they haven't won me over in the near game, 50'.   At 100 yd and beyond, the bullet rpm (fast) vs. muzzle velocity (slow) has worked well.  The performance of this combination has come closer to matching calculations on paper than the rest.  Numbers work out more often so that's a win, but a single condition change throws a wrench in the works so it raises doubt.   
More info than you asked for rnnhntr, but it's my nickle's worth.
Greg
  

"To invent, you need a good imagination and a pile of junk"  T. A. Edison
"The trouble ain't that there is too many fools, but that the lightning ain't distributed right" M.T.
Back to top
 
IP Logged
 
Oakdale
Junior Member
**
Offline



Posts: 73
Location: Maplewood, MN
Joined: Jun 7th, 2017
Re: .22 BPCR Rifle: CPA 44-1/2 vs. CSA Low Wall?
Reply #24 - Feb 22nd, 2025 at 1:06pm
Print Post  
OK, a question from a beginner….

BPCR to me means a Black Powder Cartridge Rifle. Is BP somehow involved with a .22 rimfire Rifle? I assume not, so what is the connection between BP and .22? And what is the course of fire and targets used? Reduced size silhouette targets at shorter distances or paper targets?

Thanks!

Tom
  
Back to top
 
IP Logged
 
texasmac
Frequent Elocutionist
*****
Offline



Posts: 1996
Location: Central Texas
Joined: Aug 16th, 2004
Re: .22 BPCR Rifle: CPA 44-1/2 vs. CSA Low Wall?
Reply #25 - Feb 22nd, 2025 at 1:12pm
Print Post  
Reading this thread, some are likely wondering why a few shooters are leaning towards a faster than the long-standard 16-twist for .22LR barrels.  From my point-of-view, it’s being driven by us BPCR & other even longer-range shooters using 40gr & even heavier (Aguila SSS 60 gr.) ammo to knock over those ram steel targets at 200 meters.  We’ve making tradeoffs between bullet weight & velocity while maximizing down-range bullet energy & accuracy, & staying subsonic to reduce instability.  Years ago, when the 16-twist was standardized, 40gr bullets where not all that common.  That’s my view on the subject for what it’s worth.


BTW, a heavier, hence longer, bullet generally requires a faster twist.  If you check out some of the reviews on the relatively new Aguila SSS 60 gr. ammo, you’ll run across examples of it “keyholing” even at 50yds in 16-twist bores indicating 16-twist is too slow.

Wayne
  

Back to top
 
IP Logged
 
Ranch13
Oldtimer
*****
Offline



Posts: 588
Location: East Central Wy.
Joined: Jan 20th, 2018
Re: .22 BPCR Rifle: CPA 44-1/2 vs. CSA Low Wall?
Reply #26 - Feb 22nd, 2025 at 1:15pm
Print Post  
22 BPCR uses the same rifle rules BPCR. Targets are scaled down. 22 BPCR matches generally shot at 200 yards on nra reduced targets.
There were some folks back when primed 22 cases available loading rounds with black, but for the most part shooters find the factory target ammo their rifle prefers
  
Back to top
 
IP Logged
 
texasmac
Frequent Elocutionist
*****
Offline



Posts: 1996
Location: Central Texas
Joined: Aug 16th, 2004
Re: .22 BPCR Rifle: CPA 44-1/2 vs. CSA Low Wall?
Reply #27 - Feb 22nd, 2025 at 1:20pm
Print Post  
Oakdale wrote on Feb 22nd, 2025 at 1:06pm:
OK, a question from a beginner….
BPCR to me means a Black Powder Cartridge Rifle. Is BP somehow involved with a .22 rimfire Rifle? I assume not, so what is the connection between BP and .22? And what is the course of fire and targets used? Reduced size silhouette targets at shorter distances or paper targets?
Thanks!
Tom


Tom

Yes, .22BPCR is somewhat of a misnomer.  Black powder is not used but the rules are the same as those that govern big bore BPCR cartridge rifle silhouette, hence the BPCR designation.  We all shoot smokeless .22LR with the vast majority using match-grade ammo.  Course of fire are reduced-sized steel silhouettes at 50M, 100M, 150M & 200M.  The 50M chicken targets are shot offhand, the rest are generally shot prone although offhand is an option for those that don't care about the score.  Grin

The sport is governed by the .22BPCR Association.  Go to (You need to Login or Register to view media files and links). for more details.

Wayne
  

Back to top
 
IP Logged
 
GT
Frequent Elocutionist
*****
Offline



Posts: 2143
Location: Northeast Wyoming
Joined: Jun 28th, 2015
Re: .22 BPCR Rifle: CPA 44-1/2 vs. CSA Low Wall?
Reply #28 - Feb 22nd, 2025 at 3:56pm
Print Post  
Wayne,
I feel like I'm hijacking the OP's original intention and questions, so this is my last injection here - but the faster twist our group of shooters are using benefits us more for stability rather than the energy concept.  We play a version of the "Long Gong" match only rather than 300 yd, we take it to 400 yd.  We still use over the counter ammo although a few have went to loading their own using a company's turned copper pills and high quality primed cases, a lot of effort for a small return in my opinion.
Some of the proof on paper is using rotational velocity proportional to linear velocity of a known "great" combination at a near target, and finding that same proportional combination at a far target.  That's where the fast twist comes in.   A number I came up with that has been a constant performer is a bullet rpm around 43,600 rpm.  Do some research (this is a kick down a slippery slope for you) and tell me what you discover.  Grin
Greg
  

"To invent, you need a good imagination and a pile of junk"  T. A. Edison
"The trouble ain't that there is too many fools, but that the lightning ain't distributed right" M.T.
Back to top
 
IP Logged
 
texasmac
Frequent Elocutionist
*****
Offline



Posts: 1996
Location: Central Texas
Joined: Aug 16th, 2004
Re: .22 BPCR Rifle: CPA 44-1/2 vs. CSA Low Wall?
Reply #29 - Feb 22nd, 2025 at 5:40pm
Print Post  
GT wrote on Feb 22nd, 2025 at 3:56pm:
Wayne,
I feel like I'm hijacking the OP's original intention and questions, so this is my last injection here - but the faster twist our group of shooters are using benefits us more for stability rather than the energy concept.  
Greg


Greg,

I hear you & that makes sense for you & your type of competition.  But note that BPCR silhouette not only requires accuracy but sufficient bullet strike energy to reliably knock over the steel targets.  I have watched others & experienced it myself of hitting a 200M ram dead center & it refused to fall over with a 40gr bullet which left the muzzle at just under 1100fps.

If hitting paper or a gong was the main goal than I agree with you that bullet impact energy is a less importance.  BTW, 1100fps muzzle velocity results in 49,500rpm in a 16-twist bore.  Using your 43,600rpm minimum indicates that a 18-twist bore would work, implying that the standard 16-twist is more than sufficient.  Of course this assumes we are both talking about 40gr bullets.

Wayne
« Last Edit: Feb 22nd, 2025 at 6:19pm by texasmac »  

Back to top
 
IP Logged
 
Page Index Toggle Pages: 1 [2] 3 4 
Send TopicPrint