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hello All,
I have a no.2 mkiv trainer that shoots standard velocity ammo fine. If I use high
velocity, especially Winchester, the cases will bulge and blow out where the extractor
is gripping the fired case.
Now the chamber appears to be relieved at the entrance for easier loading. The barrel is a 1934 BSA on a 1915 BSA receiver, and bears Canadian property marks. I would assume that standard velocity would be the proper ammo for it. Has anyone else run into
this problem?
Yes, standard velocity is fine and probably a bit more accurate.
This happened occasionally with the No8 rifles too and it was found that it was the brass that was the problem as opposed to the charge. Once the batch of ammo had been used or withdrawn, it was back to normal. I think this thread was aired here some time ago and one of the metallurgists on the forum (JM springs to mind.......) suggested that the extractor could scratch the thin brass case as it clipped over it and it was this that caused the weak brass to weaken further.
Try a different HV ammo brand and see if it does the same. I'm not an ammo person but....... anyway, the original thread went on and on for a bit!
Are you suggesting we tend to dribble a bit? Pete.Quote:
Originally Posted by Peter Laidler
Yes I use hv in mine all the time, it means I can simple stay on the one sight setting out to 100yds, and maintain my aim on a 4inch target, bottom aim at 25, 1"up at 50, centre at 75, top at 100.
Love that rifle.
Hello All,
No problems shooting standard velocity ammo. Have an occasional blowout with
HV. However, Winchester ammo seems to cause the most problems. AS I said the
chamber is relieved slightly probably to insure easier loading. Thanks for your opinions.
.22" rf CCI ammo used to be advertised as having an inner belt at the beas (Just HOW does one mis-spell "base"- "beas"??) just above the rim to prevent such blow outs. Whether they still build that feature into their ammo, I don't know.
"...the chamber is relieved slightly probably to insure easier loading."
That sounds unusual. Is this relief in the area of the extractor cut?
Hello Steve,
The chamber is relieved around the whole circumference, Steve, resulting in a slight
bulge with HV ammo. I had assumed that this was done to make reloading a little easier.
Barrel is mint so i doubt if it was caused by wear etc.
That wasn't done while the rifle was in military service and may or may not have something to do with your problem. I'd carry on with std. velocity stuff and not worry too much about it. BTW, mine all love Wolf brand target ammo.
I agree with Steve. The German made Wolf Match Target is excellent stuff.
The most dangerous thing that has ever happened to me shooting was with my No2. I was shooting Federal HV ammo when something flew back and hit my glasses. I opened the bolt to find the rim had completely separated from the case, and it was probably a bit of it that came back.
OK, not a great danger or even a great story, but I've never seen anything like that happen with 22 ammo before or since.
Try a Polish .22rf Mosin type trainer. They seem to thrive on rupturing cases.
Quote:
Originally Posted by L42A1
Have a BSA War Office Trainer. Quit shooting it, because every time I did I would feel a puff of air hit my forehead.
I shoot Winchester T22 {std vel} in my #2 Mk4 RFI with good results, have also used Win High vel with no problems.
Also have a 1917 Litgow #2 Mk4 and a 1915 BSA #2 Mk4 that I haven't used yet.
I've a Mauser .22 that's bad about that, but standard velocity CCIs seem to hold up OK.Quote:
Originally Posted by jona
Quote:
Originally Posted by noro
Yes, with my No. 8s. Don't waste your time and money on any of that so-called high velocity stuff. At the start, I tried every type of 22 ammo I could find in my No. 8s, and all types claiming to be HV, varmint, super speed, extra hot, turbo or whatever performed WORSE than standard ammo at 100 meters.
My theory (other opinions welcomed): the barrels on Enfield trainers are long enough that they get the last fps out of normally loaded ammo. The hot stuff has "shot its bolt" i.e. effectively burnt out before the bullet exits the muzzle. But the initial pressure peak is higher and distorts the cases, sometimes to the extent that when you pull back the bolt the extractor turns up the rim and the case remains stubbornly stuck. As a hardened muzzle-loader I always have a cleaning rod handy. It just looks a bit daft having to use a cleaning rod to knock a fired case out of a 22!
:wave:
Patrick
Hello All,
Thanks for the many replies. As these rifles were developed for training use in the mid 1920's (I believe) I would assume the British would use the most economical ammo available which would be standard velocity .22's
I was just curious if anyone else ran into the problem of blown out cases with HV ammo. Patrick especially makes a good case for using the standard velocity ammo. AS I said in my initial post, the rifle functions fine with SV, but will have a few blow outs with HV. Also accuracy is much better with SV.