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The UPS man brought me a new Chrony Alpha Master today from Miday ($99) so I took the afternoon off of work and went to the range to try it out..

Three of the guns I took were Marlin 39's. A 70's vintage 39A with a 24" barrel, a 60s vintage Golden A 39 Mountie with a 20" barrel and a 39 TDS with a 16" barrel.

Fedral 550 Bulk Pack ammo, 36 grains HP bullet, copper "plated"
39A : Average velocity 1263 fps (Highest was 1283, lowest was 1237)
Mountie Average 1254 fps (hi 1297, low 1230)
39TDS Average 1251 fps (high 1292, low 1216)

Notes: claimed velocity on box says 1280. This ammo shoots well in a wide variety of my rimfires, including autoloaders. The accuracy is very good in all of my Marlins and this ammo shoots best in the TDS of all I have tried.


Aguilla SE Subsonic
38grains lead hollow point
39A average 984 (high 1000, low 937.2)
Mountie average 994 (high 1023, low 984)
TDS average 1007 fps (high 1024, low 993)

Notes: This ammo has proven to be accurate in a wide variety of my rimfires. Only Match ammo has surpassed it in guns that shoot it well. It does NOT cycle any of my autoloaders. On most days this ammo will produce the best groups. Today it was true in my 39A and Mountie

CCI CB Longs 29g RN lead
39A (it was hard to tell these even when off in this gun) 677 avg (681 high, 668 Low)
Mountie 675 avg (720 high, 636 low)
TDS 668 average (674 high, 652 low)

Notes: Only the TDS (1/2" @ 25 yards) and my Single Six shoot this what I would consider "well". The Mountie shoots it OK (~1" at 25 yards). Most of my rimfires do NOT shoot this well. It is very quiet in long barrels.

CCI Mini Mag
40g copper coated, solids
39A 1255 avg (1272 high, 1230 low)
Mountie 1225 avg (1243 High, 1191 low)
TDS 1221 avg (1244 high, 1202 low)

Notes: Of my three 39's the Mountie shoots this the best. It is a little less accurate than the Fedral Bulk at more than twice the cost so I rarely use it.

CCI Blazer
, RN lead 40g (more than 20 years old, probably closer to thirty...)
39A 1230 avg (1242 high, 1214 low)
Mountie 1203 avg (1216 high, 1178 low)
TDS did not shot.
Notes: Shoots a little dirty. Mountie shoots these very well.

Other random notes:

The Chrony Alpha Master model was easy to use and I had it set up in minutes with NO previous experience.
-The Mountie is my least finnicky rimfire. It'll shoot almost anything well and usually pretty close to the same spot at 25 yards. Beyond that stuff seperates vertically.
-The TDS is the most finnicky of my 39's, but it will shoot the CB longs the best... It must be female... :? :wink:
-Temperature was ~65* during the time I was shooting. It cooled a bit as the day went on.
-Most were 10 shot strings though some were longer.
-Chronograph was 12 feet in front of the barrel
 

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Very informative, thanks.

I used to have a Golden 39-A Mountie :oops: . I thought I would like it if all my lever guns had Oct. barrels. So I sold it and got an 1897CB. It ain't half the shooter that Mountie was :( . Maybe after I get a thousand or so rounds through it, it'll do a little better.

C.S.
 

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You gotta be impressed with a guy that gets a new shooting toy and takes the afternoon off work to go play with it. Way to go, Wet Dog! :D
 
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